Anti-Pickpocket Wallet

When traveling in Europe, tourists are advised to hide their money and credit cards, wear a strap-on-under-shirt wallet pouch, or otherwise do uncomfortable things with their cash. This doesn't ruin the tourist experience, but it does make you question every person who walks by you or stands next to you on the train.

So I suggest that instead, male tourists carry a wallet with a mouse trap-like device inside. When closed (and in your back pocket), it looks like a regular billfold. During the unfolding process, a metal bar is pulled across the inside and latched into place. When fully open, this is just like a mousetrap. Touching the inner part of the wallet will release the spring-loaded bar, clamping it down upon the pickpocket with painful consequences.

Hopefully, enough people will carry these that pickpockets begin to think twice about "liberating" your personal cash, because it might just break their fingers (again).

For added realism, the wallet would come with two dollars, a picture of someone pretty, and two fake credit cards already installed. Attempting to remove them would also trigger the snap-action.

It would come in several styles and colors.

My girlfriend is in Prague right now, and her father was just picked on a crowded train...this serves as the inspiration for the idea.