Yeah a couple times. When I was like 3 I fell off a slide and hit my head on the not-soft ground. Nothing wrong with my noggin, but it may have been when I got the cataract in my left eye. No idea how long I was there for.

When I was about 14 I punched in a window in a fury of blind rage and hate, which sliced my hand open fairly deeply. Just needed some stitches though. That one was about 3 1/2 hours in the ER.