We use sysutils/monit (and M/Monit) to control several services. Since version 5.12.2 there's a delay of several minutes when shutting down a service.

For example, we have the following in monitrc:
check process apache with pidfile  /var/run/httpd.pid
  start program = "/usr/local/etc/rc.d/apache22 start" with timeout 60 seconds
  stop program  = "/usr/local/etc/rc.d/apache22 stop"
  if cpu > 60% for 2 cycles then alert
  if cpu > 80% for 5 cycles then alert
  if cpu > 90% for 6 cycles then restart
  if totalmem > 14000.0 MB for 5 cycles then alert
  if totalmem > 15000.0 MB for 5 cycles then restart
  if children > 750 then alert
  if failed host 172.17.40.104 port 80 protocol http
                     and request "/system/"
                     for 2 cycles then restart
  if 3 restarts within 15 cycles then timeout
  group server

A "monit stop apache" takes several minutes for Apache to actually start shutting down. This causes problems with our automated deployment scripts. With previous versions the shutdown happened immediately after issuing "monit stop apache". A normal '/usr/local/etc/rc.d/apache22 stop' stops the service almost immediately. 

Version 5.12.1 did not exhibit this behavior, all versions (5.12.2, 5.13 and 5.14) after it do. 

For the time being I've downgraded to Monit 5.12.1. 

(This may need to be fixed upstream)