So do you bust out your measuring tape to make sure that the guy hitting you up is at least 5'9. I doubt you can visually guess an accurate height estimate. Your never rude or mean, you just don't talk to them so you just don't acknowledge them...riiiiight. that's like me saying I can't stand girls who are fat no matter how funny they are, anything more than 126 pounds I just can't take it I'm not rude and I'm not mean...is this what your sort of relating too?
i do the same thing, its an evolution thing. We want big tall guys who will protect us. We are also used to having taller men because most of our pheramones come out the top of our heads and if the guy it taller, then they will fall in love :)