I have a funny story that involves scaring JW away. I personally have nothing against them, usually don't have to deal with em, but I have a cruel sense of humor, so I found this humorous. This was something someone I used to know did with one of his friends.
The person's friend lived in a neighborhood that warned everyone when the JW were coming through. Well at the time that the call came, the two of them were butchering a side of beef in the garage. When they heard the JW were coming through, they hauled a bunch of tarps in the living room and put the side of beef on top of it. They then stripped down naked, and just chopped at the beef, getting themselves covered in blood. When they heard the doorbell ring, the friend went to the door and answered, the person I knew cutting the beef up with an evil smile on his face. The guy answering the door still had the butcher's knife in his hand and asked what they wanted rudely. The JW's promptly ran, and called the cops.
The two counted on this, and pulled the meat and stuff back into the garage, cleaned off, and stored the tarps away, putting them in the washing machine to wash. They then clothed and went back to butchering the meat when the cops rang the door. The friend answered, and the cops said some JW reported two people killing a man at the address they were at, to which the friend said "No officer, I mean I'm butchering some beef, but no killing here." The cops went into the garage to see, noting the neat packages of already cut beef, and the side of beef currently being cut. The officers just looked at him said, "You did that on purpose didn't you" and promtly started laughing, the whole group. The cops said, "Next time you pull a stunt like this warn us at least, that scared the crap out of us."
When I found this story out I laughed so hard I almost peed, It was horrible, but funny. I mean the JW no ill will, but they are sure fun to mess with.