Well, flute, don't let the asinine asses get you down. Like it's already been mentioned, try and use it as a learning experience ("O.K., Mr. Smartypants, why don't you SHOW me how it's done?" or some more polite version...), or fuhgeddaboudit. There are bullies and stiffs in all walks of life, and if he's going to be that rude about something like music, which is supposed to be about BRINGING FOLKS TOGETHER...well, he's plain missed the point and you needn't worry 'bout what he thinks. Just my two cents.