Secret Keyring, to be used during emergencies

Many a times it so happens that your wallet gets snatched by someone or maybe you forget it somewhere, what do you do in such situations? How do you get back home? It's just for such times that you need the keyring stash where you can have enough backup cash available to get you home. The idea is to fold up a note slip it into the Secret Stash Keyring and forget about it until you need it. This keyring stash is watertight, tough and extremely useful during emergencies. The weight of the keyrig is 0.009kg.