There is a woman at work whom at first meeting comes across as very genteel and sophisticated. In fact, I would say that 98% of the time she is this woman that she projects. And then, occasionally, randomly, she says things that completely make me wonder if I have any people-assessing skills that work or not.
“No, don’t eat that. It tastes like old ass.”
“Well, that is just about as useful as tits on a bull!”