diff --git a/bin/pt-mysql-summary b/bin/pt-mysql-summary
index ec3c5bc7..ffdf983f 100755
--- a/bin/pt-mysql-summary
+++ b/bin/pt-mysql-summary
@@ -2265,7 +2265,7 @@ report_jemalloc_enabled() {
   local GENERAL_JEMALLOC_STATUS=0
   local JEMALLOC_LOCATION=''
 
-  for PID in $(pidof mysqld); do
+  for pid in $(pidof mysqld); do
      grep -qc jemalloc /proc/${pid}/environ || ldd $(which mysqld) 2>/dev/null | grep -qc jemalloc
      jemalloc_status=$?
      if [ $jemalloc_status = 1 ]; then
diff --git a/t/pt-mysql-summary/pt-mysql-summary_encryption.t b/t/pt-mysql-summary/pt-mysql-summary_encryption.t
index b8f510ed..dd941819 100644
--- a/t/pt-mysql-summary/pt-mysql-summary_encryption.t
+++ b/t/pt-mysql-summary/pt-mysql-summary_encryption.t
@@ -105,7 +105,7 @@ for my $i (2..7) {
          },
          "t/pt-mysql-summary/samples/expected_output_temp_enc00$i.txt",
       ),
-      "--read-samples works for t/pt-mysql-summary/temp00$i",
+      "--read-samples works for t/pt-mysql-summary/temp_enc00$i",
    ) or diag($test_diff);
 }
 
@@ -153,6 +153,8 @@ like(
    "Encrypted tablespaces included in report"
 ) or diag $out;
 
+$master_dbh->do("DROP TABLE IF EXISTS test.t1");
+$master_dbh->do("DROP TABLE IF EXISTS test.t2");
 $master_dbh->do("DROP DATABASE IF EXISTS test");
 $master_dbh->do("DROP TABLESPACE foo");
 
diff --git a/t/pt-mysql-summary/samples/expected_output_temp002.txt b/t/pt-mysql-summary/samples/expected_output_temp002.txt
index b7b7a5e2..9c90dae0 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp002.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp002.txt
@@ -277,3 +277,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
+# The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp003.txt b/t/pt-mysql-summary/samples/expected_output_temp003.txt
index e5b20824..64f0cd8c 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp003.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp003.txt
@@ -220,3 +220,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
+# The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp004.txt b/t/pt-mysql-summary/samples/expected_output_temp004.txt
index 55cd02a8..5ca8f669 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp004.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp004.txt
@@ -219,3 +219,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
+# The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp005.txt b/t/pt-mysql-summary/samples/expected_output_temp005.txt
index 3f48c826..fcfb9121 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp005.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp005.txt
@@ -292,3 +292,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
+# The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp006.txt b/t/pt-mysql-summary/samples/expected_output_temp006.txt
index 10b79804..9ce23275 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp006.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp006.txt
@@ -341,3 +341,4 @@ log_queries_not_using_indexes | OFF
 # Configuration File #########################################
               Config File | Cannot autodetect or find, giving up
 # Memory management library ##################################
+# The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp007.txt b/t/pt-mysql-summary/samples/expected_output_temp007.txt
index bd784839..efab17f4 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp007.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp007.txt
@@ -295,3 +295,4 @@ log_queries_not_using_indexes | OFF
 # Configuration File #########################################
               Config File | Cannot autodetect or find, giving up
 # Memory management library ##################################
+# The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc002.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc002.txt
index 33621026..e112c13b 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc002.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc002.txt
@@ -282,5 +282,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
-Jemalloc library not found
 # The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc003.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc003.txt
index 301c0e3f..909b1fef 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc003.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc003.txt
@@ -225,5 +225,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
-Jemalloc library not found
 # The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc004.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc004.txt
index 5ef0a955..89b13d84 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc004.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc004.txt
@@ -224,5 +224,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
-Jemalloc library not found
 # The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc005.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc005.txt
index d15262ce..98776caa 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc005.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc005.txt
@@ -297,5 +297,4 @@ report-port                         = 12345
 log-error                           = mysqld.log
 innodb_lock_wait_timeout            = 3
 # Memory management library ##################################
-Jemalloc library not found
 # The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc006.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc006.txt
index 0b927f58..ced33d67 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc006.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc006.txt
@@ -346,5 +346,4 @@ log_queries_not_using_indexes | OFF
 # Configuration File #########################################
               Config File | Cannot autodetect or find, giving up
 # Memory management library ##################################
-Jemalloc library not found
 # The End ####################################################
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc007.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc007.txt
index 60425d5f..b0decdc6 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc007.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc007.txt
@@ -300,5 +300,4 @@ log_queries_not_using_indexes | OFF
 # Configuration File #########################################
               Config File | Cannot autodetect or find, giving up
 # Memory management library ##################################
-Jemalloc library not found
 # The End ####################################################
diff --git a/t/pt-table-checksum/pt-136.t b/t/pt-table-checksum/pt-136.t
index 7124c9df..af117f09 100644
--- a/t/pt-table-checksum/pt-136.t
+++ b/t/pt-table-checksum/pt-136.t
@@ -28,6 +28,8 @@ else {
 }
 
 $sb->load_file('master', 't/pt-table-checksum/samples/pt-136.sql');
+$sb->wait_for_slaves();
+sleep(1);
 # The sandbox servers run with lock_wait_timeout=3 and it's not dynamic
 # so we need to specify --set-vars innodb_lock_wait_timeout=3 else the tool will die.
 # And --max-load "" prevents waiting for status variables.
@@ -44,7 +46,7 @@ $output = output(
 is(
    $exit_status,
    0,
-   "Checksum columns with mismatching collaitons",
+   "Checksum columns with mismatching collations",
 );
 
 # #############################################################################