Taking "fixing a bug in your head once you walk away from the machine" to a new level.

Fixed a bug, checked it in. Happy.
Go to a meeting 5 minutes later. 10 minutes into the meeting have the sudden realisation that the bug fix was wrong and while it would fix the issue it would break something else.

Anxiously sit there for 50 more minutes not really paying attention because all I can think about is that sucker being auto deployed to our Dev server.

Managed to fix it and get it committed without anyone noticing but FML.