Bounty hunters can get pretty froggy. I was ringing up a customer one day and a guy busted in to the waiting line of customers, jerked the customer's arms back and cuffed him. I hollered "whoa", and the bounty hunter puffed up at me. I told him "I don't know who the Hell you are or what you're up to, best you freeze until the cops get here". He started giving me more crap and I stared him down.
Situations like this are just too dangerous to allow. The safe way would have been for the bounty hunter to tell the cops where the suspect was, but he put everyone in the store in danger by playing cowboy.
I know I'm nuts, but I just never was geared to back down in situations like that.