[Leo greatly overestimates Don's ability to determine what is and what isn't important enough to investigate. The guy analyzes sewage in his spare time.

Raph stares hard at Leo, then sighs and looks away, folding his arms. Fine, looks like he'd better spill. Not like Leo wasn't going to find out from Donnie anyway.]

A while ago, when Donnie first showed up, there was stuff going on with the turtle. It was injured and they had work crews and stuff all over the place, so me and Donnie went to take a look.

We uh, we got caught. And got a few days jailtime for our trouble. The guy I talked to was in there, for the same reason we were.