I was walking by a dry cleaner at 3 a.m., and the sign said "Sorry, we're closed." You don't have to be sorry. It's 3 a.m., and you're a dry cleaner. It would be ridiculous for me to expect you to be open. I'm not gonna walk in at 10 and say "Hey man, I walked by at 3, you guys were closed. Somebody owes me an apology. - Mitch Hedberg.
http://www.youtube.com/watch?feature=player_detailpage&v=uPu8453j1m8#t=173s