AWWWW.... I just had the perfect opportunity to witness, and I got too nervous and didn't know what to say!!! I had Mormons come to the door, nooooooooooooooo!!!! I'm so disappointed with myself.
Haha, I tried to ask them about justification, but all they would say was through the atonement of Jesus. And I didn't really know how to squeeze the heresy out of them, so I pretty much chickened out. It totally stinks.
I don't think they wanted to debate with me though. At all.
The lesson I learned is be prepared. I should've given them my million dollar tracts. Very sad.