Enjoy Robbing Others
He didn’t learn to steal from his family and the people who were closest to him. Since this is a game that a lot of vervet monkeys like to play, he is not the only one who likes it. It is very typical of his kind to enjoy stealing from other people, especially humans.

Enjoy Robbing Others
This is one of the reasons why humans and vervet monkeys have not gotten along very well throughout history. People who live close to vervet monkey colonies find them annoying because the monkeys steal food from them whenever they can.
Adopting Strange Behaviors
Horace may be a good thief just like the other vervet monkeys, but he also has some qualities that none of the other monkeys in his species have. He spent a lot of time with dogs, cats, and many other kinds of animals when he was young. Because of this, he began to use adopt some of their strange habits.

Adopting Strange Behaviors
“He sneaks out in the middle of the night to play with the cats while it’s still dark outside… When it got dark, the rest of the monkeys did what they usually do at night: they went to sleep. Horace runs around the garden at about ten o’clock at night to keep himself busy while everything else is going on.” Carter told The Dodo.