Up until recently I did not realize the physical power that kids can have. Was playing with a 15month old kid. I taught him to High Five and then to Low Five and we practiced for a while. Then the kid called me and asked me to pick him up. He hardly lets anyone other than his parents to pick him up and I was excited because it seemed like he really liked me because I was teaching him new stuff.
So I picked him and BAM!!!! he high fived my bald head and God that hurt. But he was so proud of how he had high fived my head. I then had to sit him down and teach him high fives were to be done palm to palm and not palm to head.
I think he got it right. Otherwise my Brother-in-law is getting high fived on his head each time he picks up his son.