"Clever my son, too much knowledge makes the head bald you know" Grandpa jokingly said.
Jim didn't laugh, he didn't find it funny.
Grandpa doesn't know how the real world is right now.
One mistake, you're out. So cracking a joke with it is not funny, in respect he left.
This short story is a 50 words microfiction story with prompt "bald" inspired by @felt.buzz