I don't know everything in

I don't know everything in this world, but there's one thing I do know: If you're a psychic, and you're advertising your services by putting flyers on my car, you're a shitty psychic.

Because if they really were good at being a psychic, they'd know I hate stupid flyers stuffed under my winshield, getting damp each morning, and generally becoming a mess when I go out to my car.