Jehovah witnesses

Having lived in Cornwall for most of my life I had never encountered a Jehovah witness before and before moving up to Birmingham I think I’d only had 2 encounters –both in someone else’s flat so we invited them in for a chat (the usual studenty type malarkey where you grill them on anything that comes into your mind).

Anyways, after moving to Birmingham it was a good 2 years before I would get to meet another and being somewhat tired after work I just told them to go away. Then today we had another pair come around, I’m not particularly religious but push come to shove I’d class myself as a Quaker (yeah yeah save me the oat’s jokes) but it got me thinking, why do they do it? Why do they go around knocking on people’s doors just to be told to P off? Are the free tea and biscuits and grillings from bored/drunk/high students REALLY worth it? Seriously though, WHAT is the point?