If they have, Micchy hasn't noticed. It may be that he has a bad tendency to jump in the water if someone approaches. Kouta's tried to just take him back to Gaim (since they can both teleport and Kouta has faster reflexes than most humans) or at least feed him, but Micchy's too good at bolting into the water.

Takatora caught him off-guard and Michi's going to be very surprised when he finds out he's been taken home. Which he thinks he's hallucinating. And getting him into human form might be tricky.