At the Daily Mail: "To pee or not to pee: Women sell positive pregnancy tests on Craigslist for $25 each. . . and there is no shortage of motivated buyers: One seller writes 'Wanna get your boyfriend to pop the question?', while some buyers are motivated by revenge."
So if men don't want to get married, the best thing to do is trick them into it? Yeah, that will work.... The problem is that the women using a false pregnancy test are actually using the backing of the state to scare men into doing what they want or as a way to get revenge on them by the threat of the state for child support etc. If the state did not have so much power against men, this malicious tactic would not be as much of a threat.