I worked at a place right next to a JW church (?) For a while. They didn't knock but every damn day they put pamphlets on our windshields. No ordinary pamphlets they looked just like parking tickets so people would be forced to pick them up. Worst off, they were pretty racist and homophobic, I vividly remember one with a picture of Obama photoshopped over a swastika. Eventually we had to start our shift grabbing them and putting them in boxes in our back room. It all came to and end one day when the guy who did them came to our work in a car. Luckily for us, his sun roof was open, and we dumped about 3 months of pamphlets in his car while he was in the far parking lot
Combined with a myriad of police encounters, they stopped after that