Didn’t happen to me, but my little brother. We were a lot younger playing “Disneyland” in our living room. Which was technically us jumping on the couch to pillows on the floor, etc. Well he jumped, slipped and cracked his forehead right by his hairline on our coffee table. There was soooo much blood. My mom took him into the bathroom and stuck him in the bath with his head under the facet. Off they went after that. He now has white hair growing in the spot where he hit his hairline/forehead.