After he laughed the conversation that followed brought back memories of when I worked in a bank.
I had a few scary moments, police running through the bank with guns and bomb threats requiring us to clear out of the building. Things like that. It was disconcerting enough to think of a robber with a shot gun but we didn't worry about combat rifles shooting everyone. There was the one crazy teller who refused to give the robber any money and started yelling at him. She got lucky he ran.