Yesterday I did four sets of Dragon Flags at the gym. Supposed to be the ultimate ab workout. Tough, but I did it. Today I didn’t feel much, but the true test is to try and repeat the exercise the next day. So I did two. Not two sets. Two reps. Evidently I was hunched and holding my abs gently to repair by instinct, because once I engaged them again, I hurt. And I still hurt. OMG, I did not realize abs could hurt like this.