What, me try something? No way. I guess I asked my question badly. Let me try again.

What I meant to ask was, since there are many interesting tiny things that COULD be carried in a wallet, has anyone ever had to open their wallet for inspection even though they WERE NOT carrying anything in there that could be considered suspicious.

I know about credit card knives.

But a credit card knife would be such an obvious ploy I'd never carry one. All I have in my wallet are paper clips, safety pins, and spare keys.