Yesterday I overheard a conversation on the tram. An American guy was loudly talking “expertly” about weight training and exercise. He said you have to train such and such a way because this activated your metabolism in such an such a way promoting fat burning in the scientifically most efficient way. I felt like slapping him and shouting in his face, “if you are so expert, them why are you so enormously fat yourself ?” He probably thinks that being fat is genetic and being gay is a choice. I would say that is the wrong way round.