Go on. Rub it in.
*grumble*
Oh wait. You're on call? There's ~always~ a catch!
Yah... and being on-call around Christmas is a PITA. People buy their kids a new computer, and think they can call the company help desk to get support to set it up on Christmas Day.
[sound of buzzer] Pencils down. Test over. We do NOT support your kids computers, buttmunch. :-) or, something to that effect.