This week on Car Talk, how did the chicken get to church? That's what's puzzling Sara in Ohio, after her chicken stowed away somewhere outside the cab of her truck for a two-hour drive. Also, while we applaud DIY repair efforts, Josh in Montana may have gone too far when he tried to figure out the source of his truck's rattle by driving with his head out the door, looking underneath. Yes, the truck was moving. Yes, he was driving. And no, we aren't kidding. Elsewhere, Cathy is trying to figure out why her Sentra is going through head gaskets faster than Tommy goes through ex-wives; mechanic John is trying to figure out the labor rate for evil ex-girlfriends; and on Stump the Chumps, did Tom and Ray help Mike take ownership of his father-in-law's Lincoln? All this and lots more, this week on Car Talk.