Fat shaming can work. My niece and her husband were here at Christmas. He's the body-builder type and was talking about the gym and what he does to work out various parts of his body. I jokingly said, "What did you do to build that Molson muscle(what we call a beer belly)"? He changed the subject but seemed embarrassed. I didn't see them again until last month, due to distance and then COVID. I couldn't believe my eyes. "You lost a lot of weight!" I said to him. "Yep, Thirty-eight pounds", he said. He looks great and feels a lot better too. I kind of regretted teasing him, but it worked out and good for him.