Laughing at Scissors
Every class had one back then, the kid who was completely weird and would eat glue or went round lifting the skirts of the girls in the class. 16 years ago, my class had a kid that laughed at scissors, every time he held scissors in his hand he would start laughing uncontrollably, his eyes would open so wide I used to think they would pop out of his head. No one knew why he did it, he just did.