The Wireless Center in Strongsville, near Cleveland, advertises at curbside with a man in a gorilla suit.
The store's manager said he was watching as a kid dressed as a banana emerged from some bushes and took a flying leap at the store mascot.
The attacker looked like a Spartan from the movie "300" - except he was a banana.
The gorilla was knocked down but got back up, adjusted his head and went back to work.
But the banana split - running down the street with other teens.
Police think it was a prank. They weren't able to find the offending fruit.