For me:
1) Chavs. Full stop.
2) That there are stupid people who you just know are criticizing what you're wearing and what you look like. It's a swimming costume, not a bikini, get over it. Yes, I have big legs, get over it.
3) Hideously, disgustingly, horrifically perverted men who don't seem to care about the swimming costume/big legs dilemma but concentrate more on ogling your chest.
4) When I just want to do laps and some kid whacks you with one of those manky foam floats shaped like a humpback seahorse with several bites taken out of it.
5) The health-freak people wearing streamlined, £200 swimsuits, swim cap, personally designed goggles - the works - that swim three times as fast as me and seem to make it a competition to see how many times they can lap me.
6) Changing rooms.
7) Communal showers. I'm all for body-confidence but you do not need to wander around as naked as the day you were born, then bend over
right in front of me, when there's a perfectly good seperated changing room 2 metres away.
8) People who don't swim when they get to the pool - ie: 13 year olds who just flirt with each other and enjoy being semi-naked in the presence of others.
9) Life guards who have those sneaky talks with other life guards whilst looking at you. I may be paranoid, but I am
so sure they're laughing at me.
10) The fact that I am a bloody terrible swimmer. haha
Other than that, I'm fine with swimming pools.