My KK lost to AJ the other night - there was a small raise preflop and I had 3x that raise in my stack so I pushed all-in, she called. She caught the A on the turn. I said nice catch, and she said (and apparently believed it) "Well, I had the best hand from the start".
You just can't argue with that level of cluelessness. Just have to hope you get to be at table with them again.