... and other door-to-door evangelists.
I just had a couple of JWs visit me. I always cut through the script by asking door-to-door evangelists who they're with. Anyone who won't tell me straight-up I'd shoo off immediately, but people generally are open about it. On hearing they were JWs, I confirmed that they don't believe Jesus is God and asked them what they make of John chapter 1. We fenced amicably about those issues a little bit and I think they decided I wasn't worth their time.
Of course I think JWs are totally wrong about this key doctrine. However, I really admire the zeal and fortitude of anyone who does honest door-to-door evangelism, because I've done just enough of other kinds of evangelism to know how hard it would be. I believe that these people are at least partly motivated by genuine love for the lost. As Penn Jillette observed, if you think you've come across truth that's life-changing for everyone, only a coward or a criminal would fail to evangelize --- though door-to-door may not be the most effective approach.