I for one would not have stood around. Much like the time I didn't stand around the time a man was assaulting a woman in the resturant I was having dinner in. The guy very quickly found himself off his feet "supported" by a choke hold. He responded with "its alright, she's my sister" followed by my "I don't care if she is, no man is going to assault a woman in my presence"
As a interesting side note, turns out he was the boss of the resturant. And the woman I was with, her mom was working there at the time. She was so worried she was going to get fired, turns out not only was she not fired, our dinner was free. Seems he was worried I'd finish what I started.

-Bill Liptak