A young man climbs a tree in the woods to tie a hammock and he slips and falls and hits his groin on one of the hammocks.
A man flips over a block in a gym successfully but when he does it again, his head hits the block and knocks it over and he falls down on the block.
Young girl sleds down a big steep hill & hits a bump causing her to fall off her sled. She's going very fast. Very short recovery. Winter.
X-mas: Christmas lights fall off house just after man turns them on for first time
X-mas - Santa drops baby when boy tugs on his beard Christmas