My wife has an aunt who is in her 70's who I refused to ever go out to a restaurant with again. Years ago we went out to eat with her a few times, F'ing brutal.. She's terrible to help, bitches and moans about everything. I'm sure she, and maybe us too because we were there, got sneeze burgers or the waitress spit in the food.
BTW men get more cranky too.. I think some people get pissed at getting older. Because you can't do anything about getting older personally I don't understand why they do, but many do get crankier.