My ex-boyfriend had a joke that went like this. He called it a joke. It was really more like a story. Here it is: So there’s this guy who, one night, someone breaks into his bedroom and rapes him. The rapist is really quiet, really efficient. He doesn’t leave a trace: no DNA, no signs of forced entry. He’s pretty considerate, actually, uses lube. Uses a condom. Totally blindsides the...