Years ago, I had 2 amusing experiences with JWs.
When I was 17, still living at home, door-bell rang, my Mum answered the door, returned to the kitchen, and told me that the people at the door wished to see me. The look on their faces was incredible, as my Mum had said to them, "Just a minute, I'll call my husband!" She was 54 at the time!!!
Another time, 2 JWs knocked at the door:
Them...."Good morning, what do you think is the greatest problem in the world now?"
Me..."Er, who do you represent?"
Them..."We are Jehovas Witnesses"
Me..."You have just answered your own question, goodbye."