"Here's the rules," Mxy said before they could get sidetracked. Bat-Mite was his best buddy but he had a tendency to be scatter-brained. "You've changed bodies for forty-eight hours." He brandished a watch marked, improbably, up to "forty-eight o'clock." "You have to live each others' lives for that long. And if anyone guesses about the switch, the change will be...permanent."

"I didn't plan for this," Bruce says after a few minutes, and he sounds bewildered.

I'VE HEARD ABOUT THIS NEW FANGLED CONCEPT. IT'S CALLED JOB SHARING.