RustyMonkey wrote:It came up in a conversation about marriage, she told me how horrible she is with relationships and such. Basically, all she wants now is to not have a kid with her boyfriend.
I brought the idea of visiting an abortion clinic, but she said it's too complicated and asked me if I could falcon punch her.
Of course, this kind of hit me in the face. She's not an idiot or anything, the complete opposite. She also hasn't been on a had sex in months, so the baby must be pretty well developed. I jokingly made a comment about how she would charge me for assault, and she said that I could write a contract that I would have no financial, emotional, spiritual, or physical obligations to her and/or the baby and she would sign it. Would something like that be legally binding? Would it hold up well in court?
Call the nearest insane asylum; she's mad as a march hare. Don't be a fool.
I don't think there is a prosecuting attorney anywhere who would be unable to shoot this down with ridiculous ease.
Next lets assume that the "contract" would hold up in court (which I agree with some of the others that it would only hang you). If the baby is as developed as you said, a punch hard enough to kill the fetus stands a very good chance of detaching her placenta. If not treated soon after that would cause her to bleed to death internally, thus killing them both. 
