So I was at the dentist who happens to specialize in kids, and this man asks his son (maybe 5 years old) to pick up the toys he brought and put them in the car (which is, I assume, outside in the parking lot). The boy says, you do it. The man slaps the boy's leg really hard and says, you do it! He does not cry.

There are two mothers sitting their with their little girls. Neither one says a word. I'm sitting there with my 72 year old husband, who I KNOW will get into a fight with this man if I say something. So I didn't.

In my younger days I did confront a woman who I thought was abusing her child in the drug store, but I'm a grandmother now and like I said, I know what might have happened.

My question is: why didn't these other two mothers say anything? I felt so badly for the child and I just didn't and couldn't look at the asshat father.
Was I wrong to expect SOMEONE to say SOMETHING? Would you have said something?