Have you not heard about the Drawfs being hidden in luggage so they can climb out in the hold of coaches and planes to raid other bags? Funny at first but very well organised apparently!

As for alarms I had a proximetery sensor and pager on my Toad Ai606 on my last RST, well worth the cash for the piece of mind. I have moved since though and can lock the ST away in the garage every night so have not bother so far with this one.