Date: 1989

While married to Robin Givens, Tyson bribed a worker to open the zoo so he and his wife could have a romantic stroll amongst the animals. When they approached the gorilla exhibit he offered a zookeeper ten grand to let him into the cage so he could fight a dominant alpha male bullying the rest of the submissive ape band. Thankfully, in keeping with the zookeepers code, the man declined the second bribe and both: saved Tyson's life and prevented future heavyweight hopefuls from having to challenge a gorilla for a shot at the title belt.

Source