The first question is difficult. I answered in the minority because I think going above and beyond should be limited to when it is asked. If the boss realizes things are crazy and says "Mike, can you stay late?" or "Can you come in this weekend?" of course I'll always say yes.

That sort of connects to the second question in that I don't try to put too much in the way of 'above and beyond' outside of when it will be obvious and noticed. That's not to say I don't work hard most of the time, but I don't do extra, uncompensated work.