When rude people call me fat, if they are close enough I tell them "try not to be an a**hole your whole life" or tell them to get over it b/c I already did. Then I imagine myself sitting my, according to them "fat a**" on their skinny little body and punching their skinny little face to make it just as fat as mine!! You might be skinny but I can give you a fat lip! Although I never have acted on this daydream... not worth any jail time or permanent record...but it sure does make me feel better and makes the jerk feel a bit uncomfortable when the person they just insulted and called fat has a big ol' smile on her face!!