I know. I know that he's safe with you. Just... please don;t let plaything hurt him. And... if something bad happens and I end up trying to hurt him, then please do whatever it takes to stop me.

[LH may find it strange for Donnie to ask this. But Donnie remembered that he did hurt Mikey one time. It wasn't of his own free will, it was the mutant wasp controlling him, but even then he knew that forces beyond his control could make him do the unthinkable.

So he needed to know that Mikey would be safe. Even from him.]