Disciplining other people's children is always a pretty big 'no-no.' Threatening their kids? Yikes. One Reddit user shared their story about parents not reigning in their hyperactive son. The OP decided it was best for everyone if they stepped in, but what do you think?
I (m21) went to eat with some friends from college to a restaurant that's near the campus. The place is not the nicest, but it's better food than McDonald's and we use to go there when we want to have a 'semi special occasion'. This time the occasion was that the four of our had passed our exams.
It was lunch time, the place was not completely full, but full enough. We had bad weather so we stayed inside (everyone did). Most people were adults.
Then two women (an older one and a middle aged one) came with a baby and a kid around 7/10 years old. I was sitting facing the door so I saw them walk in but I didn't think anything of it, I'm not someone easily annoyed by kids most times. They took a table in a corner. Our table was around the middle of the room.