Many many Jehovah's Witnesses consider death in the door to door ministry the ultimate martyrdom.I have heard many JW talk about it's the best way to die with guaranteed Resurrection.
What scares me is some and yes I KNOW of some JW's who would try to provoke an assault by no more than defiant trespassing at a do not call door.
Moreover consider this.... a lot of JW's really can't cope with old age they never never expected or planned their long term health care to die in 'Satan's old system and some of these are down right suicidal.
Think about that and it will only get more disappointing for them as time marches on.