This guy picked up a souvenir when he was in Panama that he transported home in his head.
A nasty bot fly maggot.
Apparently the bot fly found a host for its larvae in the head of this guy, who, according to the YouTube video, had to wait an entire month before having it removed.
When the doctor pulls the giant maggot out with a pair of tweezers, the room erupts in laughter.
I’m not sure what was so funny, as I expected to hear nothing but the sound of gagging reflexes.