When working in non-clinical buildings, I can sometimes wear a kilt. It's up to the manager/boss to decide. Many pass, but some don't mind a kilt at all.

But the story changes when I visit friends/relatives. As a visitor, I'm always kilted. It always causes the RNs and Drs to stop and visit the "guy with the kilt in room 534", and the mandatory visit to the nurses station for the rest of the team to see.