There's something about being skinny that gives people permission to comment about my weight. As in, "You're so skinny!" (Thank you, Captain Obvious, but what's your point?) Why is this any less rude than saying, "You're so fat!"? Hair is another thing people like to comment about. ("You're hair is so long!")
I've been on both side of this equation. Just this weekend, in fact. But there's one thing you won't have to worry about, Slim. I probably won't make any comments about your hair.