The sad thing is, the stereotypes do exist. If they didn't, it wouldn't be a stereotype.
I really don't look like a geek. It's only until I start talking that people see just how much of a nerd I actually am. While being a nerd myself, there's only a certain level of nerd I can handle. People who enjoy games, read comics etc are all fine with me, but the people with poor personal hygiene and awful dress-sense who come up to me and try to talk about Warhammer 40k lore while making my face melt with their fucking disgusting breath are the ones I can't stand. There's plenty of them around my college, and I'm physically repulsed by them. I'm not in the greatest shape, but I'm not fat either.
I don't care if you want to dork out over a certain subject, just look the fuck after yourself. Then we'll have no beef.