The former president of DuPont had a squad of trained attack iguanas

Irne du Pont (1876-1963) was the former president of the DuPont company, head of the family trust, and reported racist, anti-Semite, and extreme right winger. According to Gerard Colyb's book Du Pont Dynasty: Behind the Nylon Curtain, this fine fellow built a palace in Cuba, called Xanadu, where he collected a mess of iguanas and trained them to attack:

Some of these tough, vicious lizards grew to 3 feet in length under Irne's loving care, and more than once the old industrialist was seen marching about with one of these ugly beasts crawling next to him on a leash.