No Grunting: Planet Fitness & “The Judgment Free Zone.”

No Grunting, They Said, and He Was at the Gym - New York Times: This is a truly strange article. Read it all.

"At Planet Fitness gyms, grunters and other rule-breakers are treated to an ear-rattling siren with flashing blue lights and a public scolding. The “lunk alarm,” as the club calls it, is so jarring it can bring the entire floor to a standstill. (A lunk is defined, on a poster, as “one who grunts, drops weights, or judges.”) "