enoughisenough: some of the questions I ask them, they ask me back
We were taught to always have control of the conversation. It had to be a one-way thing. It's okay for them to preach to you, but they really fear that someone will preach back to them. I will give them this much, they seemed earnest enough to stick around until the brother came along to save them (lol). He sounds like he was more aware of the approach-- if things aren't going according to script, get out of there ASAP.
I am also hopeful that there was enough of a seed planted that they won't be able to resist looking up more info. Or even to ask an uncomfortable question or two. I think some JWs wake up when they ask a reasonable question and are shot down with implied threats of sanctions or removal.