On Friday I completed a Crossfit workout where one of our classmates had 1/3 of his right arm. I didn't ask if he was born that way, I didn't ask if he needed help with anything more than I would offer anyone else. I did witness him complete the workout which included front rack lunges, pull-ups, dips, and double unders! Stop telling people why you didn't do what you said you would do. No excuses, no explanations necessary.