I can guarantee that man walks around giving advice......
Hahaha, no doubt!
There is this guy in my gym, 180 pounds, big belly, big glasses, fanny pack chewing on the same piece of gum for about 5 hours, telling every new member how to train and how to eat right. Last time he even pulled out the swiss ball!
I allready humiliated him once when he went "spotting" me without asking me.