Hi OsirisSail, don't want to hijack this thread but since you seem quite knowledgeable on the subject I could not resist to ask you if you know regulations regarding Taser guns? On every customs/immigration forms they ask for "firearms" but not for Taser or other stun weapons.
Friends of mine got a thieve coming aboard at night in the Tobago Cays last year. It seems nowhere is absolutely safe anymore. I'm seriously considering alternate means of defense such as nail carpets, alarm systems, motion activated lights and a Taser.