Didn't see the threadmill was running, walked on it, fell forwards but tried to hold on to the rails at the side, ended kinda "running" and dragging my knees for quite a few seconds. Had to look ridiculous, yet everyone was stone-faced. Bleeding knees afterwards.
At 15, loaded the bar to squat. Went to deep, collapsed with the bar rolling over my head.
Serious back injury from leg-pressing. Worst pain I have ever felt, had to crawl afterwards.
NN