Another day, another report of a fight that broke out over a face mask. The latest occurred this week aboard an American Airlines flight in Las Vegas. In a video posted to Twitter, two women can be seen wrestling in the aisle, punching each other's faces while other passengers looked on and shouted. Caryn Ross, the passenger who posted the clip, says the brawl started because one of the women complained that the other wasn't wearing a mask. "Nothing like a morning Fight Club as tempers flared on an American Airlines flight today," Ross wrote. "So much for social distancing!"