Hmmm, what part of "a child you can prove is not yours" gives you the idea that there was any "messing with it" going on at all?
There's a guy in Canada who hadn't seen his wife in 19 years, they lived on /opposite sides of the country/, and had just never officially divorced. Then one day she got pregnant from a one night stand, went after her husband for child support, and the court /gave it to her/!
Then there's the guy who had his sperm stored in a sperm bank. After he divorced his wife, she decided to steal some of that sperm (by forging his signature) and impregnate herself, then go after him for child support, which of course she was awarded.
And what about the child that is the product of a child being raped by a grown woman? Are you going to tell HIM he should have kept it in his pants? Or do you think it's fair that's he's held responsible for child support payments to his rapist and has money he's earned deducted directly from his bank account when he turns 18, to cover /back/ child support?
Stop just saying it's always the man's fault and "you should keep it in your pants". You're precisely proving my point that women avoid any responsibility, and it's because western society is designed, at the behest of feminism, to /help/ them avoid responsibility.