5. You listen to your friends’ advice instead.
That’s great that your friends are fast and are such experts in the sport of triathlon. But if BFF Johnny Triathlete runs a 50K this weekend, should you run a 50K too? “I hate when athletes ask their friends for advice (often absurdly wrong) and then take it without first discussing it with me. This is often displayed when you see their Facebook post about the awesome 14-mile trail run they did last weekend with their friends when they were supposed to be resting up for an important marker set the following week.”