Sounds as though Garret needs a light for when his cloaking device is engaged! Only problem is you wouldn't see it flashing, then ya carnt find the dam switch to turn it off! Still, it might not help that much b/c you'll still hear him comming!
Hang on, he could fix that problem if he used a device called a muffler
(I would like to make a symbol but instead I'm too busy doing Aussie Mike's work
)