Well.....actually....this sort of encounters can be fun since they allow you to practice all your redneck jokes, no?
"Naw,...but at least she (my wife) ain't my sister neither!"
"Whoa! Ease off, boy! What are you doing moving your Mama's house around like that??"
"Hey, a cowboy! How are things back in Brokeback?"
Ok, ok, so I'm not very good at this....
Actually, most of the time, when I need to deliver a retort and I can't think of a good one, I just put on this outraged look on my face and yell, "YOU WILL NOT TAKE THE LORD'S NAME IN VAIN!" And promptly leave. It just leaves everyone puzzled....
cheers,
suntan