I definitely feel your pain. With pink hair, skeleton tattoos, and more than a few 13's, a septum ring and a fair amount of snakes; Most people won't give me the time of day. I recently flew back from Phoenix, and the woman next to me was reciting prayer the whole flight, while terriflyingly staring at me the whole way.
Yup. And if they can't recall that there is a thing called a Food Chain, then they obviously don't deserve to have one. I have a pet mouse, she was supposed to be a feeder, but, well, crap happens and she's adorable.