I was in a bar last night, and a guy I know came in.
The barman said to him, "Where's your good lady tonight?"
He jokingly replied, "Which one?" (Standard response.)
The barman said, "Your present incumbent".
The guy's face went blank, there was a pause, then he turned to me and said "I don't know if I've been insulted or not".
He was going to have to go home to fetch a dictionary, to check.
It amused me.