the short end of the stick. I've known way too many women whose sorry exes wouldn't pay child support. And it's a big fat whopping lie that the courts will hold them responsible if they don't pay. It falls to the women to sue him into oblivion and a single mom often working 2 jobs doesn't have a lot of spare cash to hire a lawyer to pursue it and some courts won't even hear it until he's so far behind (x amount of months or so many thousands was what my aunt was told).
My aunt gave up her career because her husband urged her to stay home with the kids, she didn't really need that college degree because he swore he'd always take care of them. Then guess who did the most cliche thing ever and ran off with his secretary, leaving her with two boys, no career and limited work experience to fall back on. A judge can't screw him enough, IMO.