One of the monkeys used to always swing down and annoy the otter in the exhibit. One day, the otter timed the monkey's swing perfectly and latched onto his leg as he tried to swing away. The monkey started screaming bloody murder and trying to skitter away but the otter's grip was too strong. Schoolkids were screaming and crying and stuff. The otter just methodically chewed into the leg until the keepers got in there and pulled the monkey away. His leg was already ripped off down to the bone and he died of blood loss.