We've recently had a couple of restaurant encounters in which some kids ran amok while their parents ignored them, talking on cell phones or to each other. One such instance had half a dozen little monsters running around screaming, leaving food and trash all over the floor, and so on. After this dual-family party left the place, it took the waiters and staff about fifteen minutes to clean up the mess.
The worst thing? This wasn't a family of stupid people, or a cheap restaurant. This was the sort of family that probably drives a Volvo or two and has college funds building up for the kids. In other words, they were rich shits, and you'd think you could expect better behavior from both the parents and the children.