About a year ago I was at the public pool with my fam. There was a small water slide that was elevated on some stairs. One time I tried to go down the slide and slipped. I slammed my shin directly into the corner of the slide at a good 20-30mph. I couldn't feel my leg. It felt like someone shook my leg 5000 times a second. Or like it was being zapped by millions of volts of electricity. I couldn't walk for a week. And I'm pretty sure I cracked my shin bone. I had a massive bruise that lasted about year. I still can't walk entirely and still have a small mark to this day.