When alligators where introduced, they actually took a bite from the other person in an interaction . This was almost the end of the band Deef-tones, when they where attacked by a very hungry alligator that a fan had brought when they performed on stage in Amsterdam (?).The notorious criminal Sylvester Greer even managed to kill someone with his alligator

After that, the alligator nowadays only eats his master/mistress instead.