ignore it, or get a bunch of bodybuilding friends. They, unlike you, are just ignorant. Then again, in this area, it isn't all that common and people probably react differantly. Especially in the case of women. I myself get, "why do you need to get bigger? Your big enough" its annoying, but the only answer I give is "because", I don't feel like explaining it, and i don't think I owe any explanation