Heck, there was even an (in)famous case a few years back in which a guy got a BJ from a girl, and she secretly spat his semen into a plastic cup, froze it, then later thawed it back out and successfully impregnated herself with it. The court ruled that the man had given her the semen as a "gift" when he came in her mouth, and that it was legally her "property" to do with as she pleased. So he ended up paying child support.
That's one of the most fucked up things I've ever heard.
I knew a guy who fell in love with the town hottie and ended up marrying her. After about 2 or 3 months she got him to adopt her child. Less then a month after that she divorced his ass and filed for child suppot and the courts gave it to her
Last I heard the guy quit a good job and went back home and was working at some job for his dad or uncle who on paper was only paying him like $7 hr. the rest he was paid in cash. He still had to be carfull because how do you go explain to the judge how you boufgt a house and drive a $40K truck on a job that only pays $7 hr?
17% of $7hr is a lot less then what he would have been paying had he stayed at his old job.