You are right. I wasn't thinking in that direction. Missing gas and you are out a few dollars. Something gets thru the gas filter or gumms up the whole tank and you are out big bucks.
However, In my younger days (about 20 years ago) I can see myself telling the officer:
"So I was walking down the road and had to go realy bad. There is a tree, a fence... No wait, I know, I will pee in this guys gas tank!"