I usually say yes, too. I've been lucky that it's rare for people to abuse it (with me anyways). I ended up staying 'til midnight once (I rarely work more than 40 hours), but I was happy to do it in this instance: it was a critical need, the person was new and had been given limited training (not her fault), I was the only person besides my boss who knew enough to be of assistance, and although it was years ago, I know she still remembers and appreciates it. Plus I am part of the Information Technology Services department. I do agree that people who abuse it need to be handled differently. "Lack of planning on your part does not constitute an emergency on mine."