This is funny... a gym with about 120 locations nationwide, is serious about maintaining a non-intimidating atmosphere for its members. In order to make their gym into the kind of place anyone can feel comfortable, they have a very strict set of rules, including rules against wearing bandanas, banging weights down on the ground, and grunting. That's right, no grunting is allowed. And they're serious about it, too. A man in New York was escorted out of a Planet Fitness gym by police after breaking that rule last week. "When somebody's in there and they grunt and they grunt loud, it's trying to bring attention to themselves to show everyone how strong they are," said Mike Grondahl, CEO of Planet Fitness. The offender, a 40-year-old corrections officer, said that it was an embarrassing situation to be in over a grunt.