I realized that I don't know what's coming out of my wallet. Specifically, I have a key card for my room. Wave it, and I'm in. Then I have an Octopus card (exactly like the Oyster card, for all your Londoners out there). Wave it, and I'm on the subway. Then my ID for work is also a key card, so I wave it and I'm in work (seems to work when I arrive...not as much when trying to leave...hmmmm).
Anyway, with all of these cards emitting radio frequencies in wallet, I feel like there's more stuff coming out of my wallet than a Star Trek phaser. I'll just go on the assumption that the signal from my cell phone in my other pocket is neutralizing the effects of the cards, rather than combining to mutate me.
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