What is your pet peeve about swimming?

Here's one: Warming up at a USA Swimming meet in a packed pool of age groupers who seem to think the entire "warm up" is to be done at maximum effort from beginning to end. Imagine the whitewater produced by the flailing arms and legs of 20 or so kids per lane. (Similar experiences can be had at bigger Masters meets like Nationals--but hopefully most have learned by then the finer points of warming up at less than race pace).

Here's one: Warming up at a USA Swimming meet in a packed pool of age groupers who seem to think the entire "warm up" is to be done at maximum effort from beginning to end. Imagine the whitewater produced by the flailing arms and legs of 20 or so kids per lane. (Similar experiences can be had at bigger Masters meets like Nationals--but hopefully most have learned by then the finer points of warming up at less than race pace).