Staple IDs to your chest.

[Natsumehack]

How about notes as well? Staple a "kick me" sign to someone

Use note on a person facing the other way, to quickly stable it to there back, where they can't read it.

I would suggest if this was ever implemented to write. "I kill bees for fun" Or " I am a traitor."

Watch the crew go into a blaze of fury to kill the bee killer.