Well, shoot...my computer freaked out again, and my post didn't show up!
Anyway, I was just saying that I completely agree about the grumpy people. If you don't want to be there, STAY HOME! I always hope that I will be standing next to some people that are in a good mood--not necessarily talkative, but not crabby either.
I also think that if you have younger children you should leave them at home. They are cranky, hungry and sleepy, and really don't need to be there. One of us always stayed at home when our kids were little. Now that they are teenagers, it's no big deal as long as there is a coffee bribe.