The moment when you realize someone is in danger is the moment to act. It's not the time to hesitate or tell someone else to go. It is your responsibility to do everything you can to save them.
For lifeguards, this moment is limited to 20 seconds. Once we see that someone needs us it is our job to react, in that short 20 seconds we must get to them and start to do what we can to help them. What we have trained to do.
We know that at any moment this could be required of us, and any good lifeguard is constantly searching the water and land for any threat to the patrons in our care. With this thought in mind, I hope you can understand why we take offense when people say that we are "only sitting" and "not doing anything". We are constantly working on our skills and many of us go through rescues in our mind while on the stand, so that when you need us we will be able to help you in the best way we can.
This weekend I was put in multiple high-stress situations with people that were covered in blood, or could not breath due to a lung dysfunction or over exertion. It's strange how time slows down and speeds up at the same time when people are in a panic. In the past I never thought I would be able to keep calm and think with something so crazy going on. But I managed, and even though I'd like to never have to do it alone again I know I will be ready if it happens.