A real-life line not used in the movie
After looking through the post about why people liked Val Kilmer/Doc so much, I was thinking about the idea that people like Doc because he was so cool. Sometimes people will assume this is just Hollywood giving a polish, and it does happen, but there is plenty of evidence that Doc was a pretty cool guy in a very slick & smart-ass way.
There's a story of when there was some gambling going on and Johnny Behan was upset with Doc, who was, of course, drunk and saucy. Doc, in front of all assembled, told Behan that he should retire and go to his room, saying: "After all, you're only playing with money that I'd given your woman anyway."
Doc's biting witty-ness humiliated Behan, and it shows just what Doc was like to be around. It's very easy to envision Val Kilmer saying this line and I'm curious as to why it was never used in the movie.