A few years back, my wife and I were eating at a Ruby Tuesday's. This one brat was running all over the place and the parents thought it was darling. I made the mistake of mentioning something about confining/restraining the kid to the kids mother and the white trash dad nearly wanted to take me outside and beat me up. My wife told me to not make waves and for her sake I did not. But it bothered me. I vowed next time something like that happens, I will get up and complain directly to the the management.
Won't do any good. At least, not until one of the little darlings trips a waiter and ends up underneath a tray of heavy plates. (I've seen that happen--and the parents actually said they would sue--don't know if they followed through.)