As Roger headed into the zoo office, he ran into Leonard, a tall man with blond hair. Roger liked Leonard, but sometimes, he went overboard with his practical jokes.

He remembered Leonard’s last prank very well. He had snuck Roger’s cowboy hat into the chimpanzee cage. Then Harriet, one of the two chimpanzees, had put it on her head and wouldn’t take it off.

Everyone in the crowd that day started laughing. Roger was angry at first but eventually laughed too.

“I hope there are no practical jokes today, Leonard,” Roger said.

Leonard’s eyes twinkled and then he shrugged.