It seems kind of crazy to go to someone's house touting your religion as truth and then not even defend your own beliefs. Why do JWs stop the chat if someone just tries to calmly reason/debate with them? I'm not talking about crazy preachers who start slamming Bibles and yelling about how they need Jesus or something. Just people who like a little discourse.
Is it because their faith really isn't that strong? Is it because they really don't care if anyone else converts, since they themselves are already "saved?" Is it just because they're scared or uncomfortable? Or is it because they just want to leave a magazine and get some coffee after some difficult door knocking? Just curious.