Being contacted by a co-worker over MSN to ask about an issue they are having at work. At 10pm on a SATURDAY. I'm not on call. You have my MSN because we chat outside of work. Don't ping me for work stuff and compound the rudeness by letting it slip that you have called for support on the issue. AFTER I have spent time troubleshooting it with you.
I hate that feeling. Trapped in support hell. It isn't like I can say - don't bug me, I'm not on call. That would be a poor attitude now wouldn't it?