Do you let yourself get crotchety and irascible?

I find myself wanting to let loose with my opinions more and more (I bet you didn’t think I was holding back, did you?). I try, really hard, to be polite, but it is getting more difficult. Do you think it’s ok to let yourselve get crotchety and erasable? If you were going to get crotchety and erasable, what would be the most socially acceptable way to do it? Any tips?

ta, N ;-)