The first video was sort of easy -- I saw the person who fell off their floatation device and I kept looking just at that person until the lifeguard blew their whistle and jumped in and saved them. The real question, though, is not did I spot them. As the text mentioned, half of children drown while someone is watching. I do not have children but if I were responsible for that child (either as a parent or otherwise), would I have jumped in and saved them? Maybe not, maybe I would have just been standing there wondering "do they need my help or not". I haven't thought much about this before but after being confronted with the facts by this site, I have decided that it is better to act immediately when there's a possibility that a person is drowning and save them even when they don't need saving than it is to hesitate and wonder whether they need help.