From a happy little Q&A on child-abusing baby sitters in Good Housekeeping:
Q: Is it riskier to hire a male babysitter?
A: Yes, as far as sexual abuse is concerned. Seventy-seven percent of reported sexual assaults by babysitters are committed by males.
Q: Does that mean it's safer to hire a girl?
A: Not necessarily. Females commit 64 percent of the reported physical assults - hitting, slapping - against kids by babysitters.
Hmmm. Do they still have wolves that suckle human babies?