This week on Car Talk, we asked and our listeners delivered! We kick off the show with some of our listeners' favorite practical jokes, from taking a groom on a detour after his bachelor party to making a roommate question his very existence. Tommy even recalls an Army prank that further endeared him to good ol' Sergeant McNeely. Also, what does a failing clutch master cylinder have in common with Ray's dental work? Plus, a Boston driver seeks a 2-horn solution to rush hour, a parent learns you can lead a kid to a car but you can't make him drive, and on Stump the Chumps, we find out whether Sarah's mini-van really was the site of a peeing contest while she was away. All this and lots more, on this week's classic edition of Car Talk.