I was once the "That's enough!" woman...
We were at a restaurant and there was a huge (like around 20 people)extended family having a party. All the adults of various ages were at one long table and the children (ages 5-10) were ostensibly at another. I say ostensibly because the kids were nowhere near the table. They were running up and down the aisles, shrieking, giggling, and horsing around. No supervision. It was barely tolerable until one of the older kids (about 9 or ten years old) stretched himself on a banquette and started kicking and screaming; mimicking a toddler tantrum.
Something in my head snapped. I boomed, "All. Right. That's enough! Sit down, be quiet and eat your lunch."
The entire restaurant stopped and time stood still for me. All of the kids stopped running around, all went and sat themselves down and they finished their lunch.
Normal restaurant noise resumed and was pretty subdued for the rest of the meal myself. The Ex told me that what looked like the patriarch of the family made eye contact with him and nodded approvingly/apologetically at us.
I don't know why it had to be a stranger to call them to order, but I suspected everyone was just being too nice to say anything to anyone else's kid and things just kind of steamrolled.
I was at this restaurant about a year later and the manager actually asked a family with a very unhappy infant to leave... with sincere apologies and a comped meal for next time, but the manager said she had a responsibility to all of the other patrons, to ensure that as many people as had a pleasant meal.
I was 14 when Mama did this at a very crowded restaurant at dinner. We were visiting extended family for the first time and my brother, sister and I were aghast at the antics of all the other children; both in our party and all over the restaurant. There had to be well over 20 kids running and screaming in this rather nice steak house. DB, DS and I were in our early teens and the oldest kids there and KNEW that if we had acted like this we would be dead meat. So we sat still and kept our mouths shut. I guess Mama had enough. I should mention Mama used to sing opera; Mama doesn't shout, Mama PROJECTS. Mama stood up and demanded that every child find their seat NOW! Que a moment of absolute silence and stillness and then every child in that restaurant went straight to their seat and SAT. My sibs and I were hard pressed not to giggle at the nonplussed looks on everyone's face. Only 1 person came up to Mama to scold (not one of our relatives, thank goodness); Mama simply stared at her coldly and informed her that "I
at least raised my children to be civilized human beings and not banshee monkeys."
SS slunk away; which lead to siblings and I extremely thankful that we were not at the receiving end of Mama's ire. The manager comped Mama's meal and gave her a free desert. The other parents in our party looked rather shamefaced and kept better control of their kiddos while we were there.