Take a ride with me back to 1987. Picture yourself in your town, or city centre. Remember the clothes people wore, the hairstyles etc...
Now imagine yourself doing your ministry out on the street, engaging with people, speaking with them, striking up conversations. Now, how would you feel, and what would you say, if you noticed two people appear nearby with a cart. They begin to unpack and get it ready. You keep an eye on them as your talking to someone, showing them a scripture from your bible.
You notice they are Christians from a nearby church, promoting their literature. But they are just sat there on the bench. One is wearing sunglasses, they are both facing away from the cart, paying no interest in it whatsoever. How would you back then, and how would other witnesses have reacted to the cart and this couples attempt at preaching?