by A J Irving » Aug 11th, '09, 10:51
I'm assuming that when you say somewhere messy you mean inside of a bit of fruit or similar rather than inside your... er... drug smugglers special pocket?
Unfortunately there isn't a video demonstrating it so it's debatable how quick and easy it is to use. If it was something you could practice with until you could do it without looking, then I can imagine plenty of nefarious uses for it.
For £4.99, its hardly like you're throwing money away for something useless. At the very least you've got somewhere to save an emergency fiver for if you run out of money at the bar.