I look like an idiot, and it feels like everyone can see how pathetic I am. I’m the weakest person here, and I’m about to just collapse on the floor. I’m totally losing this class.

No, I wasn’t in a winter clinic with George Morris; I was taking my first group fitness class at a gym, determined many years after the fact to get back into my pre-pregnancy shape. I’d always been relatively fit and brave enough, or, er, stupid, so, my first week as a gym member, I innocently went to a Friday night class called “High Intensity Warrior Training.”