Ruth Walker: The hair dryer is for your head, not for any other part of your anatomy PEOPLE who leave wet towels lying on the changing room floor. People who remove plasters and leave them at the edge of the swimming pool. People who remove the hair from their hairbrush and leave it to fall wherever it may (usually somewhere it can get picked up between my freshly showered toes). People who don't share equipment/benches/personal space. People who stare at other people. Bare feet in the gym. Or, worse, those flimsy, throwaway hotel slippers. Tiny, shiny shorts on men. Tiny, shiny anything on women. Full make-up (what is this - America's Next Top Model?). Sweaty hand prints left on the mirrors. Sweaty body prints left on the mats. Sweaty bum prints left on the bike saddles. Changing the TV channel without asking. Cracked, warped, weeks-old newspapers left in the sauna. Farting. Grunting (to excess). Mobile phones. Mirror-hoggers. FYI, the gym isn't there for flirting. The couples who work out together stay together, apparently. But does that mean they have to smooch and coo at each other sickeningly between sets. And, while I'm on a roll, the hair dryer is for coiffing the hair on your head, everyone, not for any other part of your anatomy. Are we clear on that? Did I mention the wet towels? These are a few of my least favourite things. Going to the gym, it's supposed to be a healthy pastime. Something to help the over-worked and the uber-stressed release their inner tensions in a controlled environment. Get the endorphines flowing. Which it probably would do if it wasn't for one tiny little inconvenience: other people. Can't they just go away and leave me to sweat in peace? Or, at the very least, clean up after themselves? There are so many bad manners on display, is it any wonder that gym rage is now a recognised phenomenon? Earlier this year a bodybuilder stabbed two men at a gym in London after one of them failed to free up a weights machine. Then there is the New York hedge-fund manager who claimed he injured his spinal cord after being thrown from an exercise bike by a fellow gym member for "whooping" too loudly during spin class. Well, that would have been a bit annoying. The same year a mother and daughter from Birmingham both received a lifetime ban from David Lloyd fitness clubs after a brawl broke out in a fitness class over the critical direction of a fan. It is said that one of the women's false nails broke off during the scuffle and became embedded in her rival's head. Now, tell me. Just what's healthy about that? And just last week, actress Emma Stone said that, while training for her role in The Amazing Spider-Man, she "discovered I have a deep-seated rage when I'm holding heavy weights over my head. Whatever dormant anger I have in me, that's where it comes out. So, people, there's a lesson to us all here, I think. Wipe down your machine. Put away your towels. It's time to brush up on your sweatiquette.