Joe Mutekitaru figured out how to train fish. Goldfish aren’t smart, but they can be trained. Joe took his best goldfish to parties and bars. He carried a matchbox with dead flies in it, and showed people how the fish would eat them. Then he bet against people who believed that the fish would eat the next fly. They didn’t know that Joe’s fish was well trained. Joe would even leave the room and let someone else drop the fly into the fish bowl. No way would his goldfish eat it. That’s why Joe got the name “Goldfisher.”