This topic has come up on HN several times before and it never ceases to unsettle me. I'd never had a personal experience with it before. It's even more chillin

This topic has come up on HN several times before and it never ceases to unsettle me. I'd never had a personal experience with it before. It's even more chilling after having had an experience with it. My 8 y/o daughter recently attended a "pool party" w/ sports teammates. One of the mothers, fully clothed and there only acting as a chaperon, jumped in to pull out one of the girls who was in distress. The distressed girl's mother had commented, just a few moments before, on how the girl was "fine" and "just playing" as she flailed about in the water. My wife said the girl didn't look to be in distress, per se, but was kind of "jumping around". I found out later that the mother who rescued the girl she'd been a lifeguard. She recognized the girl was in distress. There were 8 to 10 other adults present and no one else, in or out of the pool, was thinking too much of it. It's absolutely chilling.