I was always very timid at the door. You, Donny, would have been my worst nightmare. Like Aussie pointed out, you deviated from the script. As long as it was a textbook encounter, I was fine. The minute a householder came back with anything other than what I saw on the platform, my reply was, "I didn't get up at 6:00, shower, put on a suit and come out here to be preached at or argued with. I came looking for people who want to hear what I have to say."
One time I was working with an old spit-fire pioneer sister, it was my door, and the man wanted to save me. I recited the above and started walking away. I think I may have left the old sister standing there wondering what she should do but then I heard her footfalls come right up behind me. The man yelled out, "Don't you want to know how the bible can save you?"
"NOPE!"