Creatively Sleepy.

And here's the thing it isn't just because he a character used for comedy, Mickey is weirdly able to counter most of Dexter usually tricks to try to get rid of detectives- there's the obvious fact Dexter would underestimate the cute tiny friendly mouse person.

But even if Dexter try to frame Mickey, Mickey would just break out of jail as he done several times in the comics when he does get framed to the the shock of Dexter.

Try to kill him by tieing him to a kill table after hitting him with that syringe? Bad news Mickey has escaped death traps before while in a drugged states with his wits.

It's questionable Dexter would even get to that point, because even if Mickey great detective skills are well known and famous- it still Mickey, Dexter take a bit to realize how skilled he really is. While I can see Mickey clocking Dexer as suspicious pretty early on as Mickey is shown to have a pretty good gut but still being extremely friendly towards him while collecting proof behind his back

Dexter can't even flee to get away, not only would Mickey go after him as he shown to do so even out of the city limits. He is good friends with Captain Doberman, a high ranking member of the army who also connections to the freaking secret service who in Mickeys universe have a spy network that works worldwide on missions

Dexter is so doomed man.

And all thanks to this little face.

Always secondary, never the lead. So is the tragedy of Horace Horsecollar.

Always secondary, never the lead. So is the tragedy of Horace Horsecollar.