I often tell people that I hate children.
Honestly, I don't really hate children. I tend to feel a little awkward around them, but I don't hate them.
I just tell people I hate children in the hopes that they'll take it as a sign to /stop/ telling me I'll change my mind on not wanting children.
Not every man is meant to be a father, and that's okay. Leave me alone about it, for christ's sake.
If people just accepted my choice, I wouldn't have to lie to them in order to shut them up.