While I've never been given a $cientology one, I've had leaflets thrust in my face many times. I usually do similar to CD, with the twist that I keep walking, take the paper, screw it up and throw it over my shoulder - bonus points for hitting them. My Sam would tell you that giving me a leaflet is another way of saying, "Here, throw this away for me". That's why she'd grab my arm and diplomatically steer me in another direction if she saw them before I did.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'