Choke I cho'

I was interviewing a patient and asked him what brought him here. He tells me, in a matter of fact way, that it was the police. He goes on to say that they choked him, and starts motioning to choke himself. Then looks at me. "Here, I'll show you how they did it", and starts bringing his hands toward me, in an attempt to choke me. "Um no, thats alright", I say. "You sure?". Oh yes, I'm positive.