To be honest, I haven't had anything like that to me that I remember. The only I can think of is people in my school don't think I'm a gamer, and just a conventional nerd, but that's because all these people are the kind of people who play modern warfare on their xbox's all day and don't think there is any other type of gaming. They also think (the girls in my school do this more.) I'm a loner, which is moderately true, but they also think because I am a loner, I am therefore incorruptible, good, and don't think of girls in a sexual nature. Like, I once went to a birthday party of a friend, and his other friend heard me swear and said "I never though YOU would swear this much."
I also get the "Your just a kid, you can't really be on the same level has me, and be has good of a gamer and has intelligent." thing a lot.