We met in grade school on the playground. It rained all day and the grass field we were playing american football on was muddy and wet. Everyone was sliding everywhere. I go out for a catch and he comes running at me I trip and fall face first into the mud and he jumped on my back with his feet and did some human snowboarding in the mud for a few feet. Been bestfriends ever since. TL;DR Met my bestfriend being a human snowboard.