Don't (as my wife did) leave your door open, allowing a mongoose (they are all over the island. Really.) to enter and then close the door, unknowingly trapping the mongoose in your room. They don't like it. Even though they look like really big squirrels with a Bill the Cat haircut, they are more like Taz in the cartoons. Especially if you accidentally step on them. (as my wife did) I've never seen her move so fast in her life. Followed closely by a fur ball making loud "ehhhhhhhhhhh, ehhhhhhhhh" noises.
Fortunately I was nearby and had my video camera. It was truly a Kodak moment. (And fortunate that I made and stashed away several copies, because for some reason they keep disappearing. The video is always a big hit when we have family and friends over)