Silliest/most minor thing that injured you/prevented you from working out?

Most of the incidents I can think of revolve around my young kids. I can be doing the most harmless-seeming things with them and boom, I'm off weights for a few days.

Lifted my son over my head when he was 3 and threw my back out for a week. Held my 5yo daughter on my hip while we were standing and singing in church for like 20-30 min and couldn't do shoulder work for 3 days.

What's your "Is this really derailing my workouts?"?