Silly injuries
Stupidest I ever did was not follow the checklist properly. In a pa-28, didn't lower flaps fully and despite the bright orange warning painted there, stepped on the flap and fell onto the stirrup/step below. Ankle is still not the same, four years later. (Simple slotted flap on that type drops freely with a little downward load. It's held up by airflow, or on the ground by a spring)
I read the checklists now.