I'm not talking feline...
One thing that really annoys me is when women use the handicap stall in the women's restroom...and they're NOT HANDICAPPED!
Especially when there are plenty of empty stalls to use. They're being lazy and inconsiderate and it drives me crazy.
And women who pee on the seat and don't clean up after themselves.
Oh yeah, and people who don't wash their hands afterwards. Gross!