Some of my favorites...
12. If my kid's only six and you ask me with a straight face how I can possibly teach him what he'd learn in school, please understand that you're calling me an idiot. Don't act shocked if I decide to respond in kind.
13 Stop assuming that because the word "home" is right there in "homeschool," we never leave the house. We're the ones who go to the amusement parks, museums, and zoos in the middle of the week and in the off-season and laugh at you because you have to go on weekends and holidays when it's crowded and icky.
17. Stop saying, "Oh, I could never homeschool!" Even if you think it's some kind of compliment, it sounds more like you're horrified. One of these days, I won't bother disagreeing with you any more.
19. Stop asking about how hard it must be to be my child's teacher as well as her parent. I don't see much difference between bossing my kid around academically and bossing him around the way I do about everything else.
20. Stop saying that my kid is shy, outgoing, aggressive, anxious, quiet, boisterous, argumentative, pouty, fidgety, chatty, whiny, or loud because he's homeschooled. It's not fair that all the kids who go to school can be as annoying as they want to without being branded as representative of anything but childhood.
24. Stop talking about all the great childhood memories my kids won't get because they don't go to school, unless you want me to start asking about all the not-so-great childhood memories you have because you went to school.
via Secular Homeschooling Magazine: The Bitter Homeschooler's Wish List.