I got almost the exact same thing thrown at me once! I was away for the holidays, so tons of people I only half knew. And it was one of the single most socially bizarre moments of my life. Everyone sitting on the couch eating pre-breakfast junk food.  Shockingly almost all of them were fat. I'd been out running. And there was an envious statement from one of them, and then general agreement, that I was "lucky" to have a metabolism that worked well enough to keep me slim and active.