Well, I have. Sort of. I "came out" as agnostic to my mom yesterday, but she was just very upset and felt hurt. But, hey, I have to do pretty much what she says, as I'm 13, and your parents give you a roof over your head, food, etc. My mom is genuinely a good mother; but I'm at a Catholic school, and there's quite a lot of BS there, so I sympathize with you.
Gone