This week on Car Talk, we start with a visit to Bob's Fairly Reliable Used Cars, B&M Waste Management and other bizarre bazaars, courtesy of our pal Bill at cars.com. Then, it's off for an equestrian call, Casey's Toyota Pickup, aka "The Horse," is making a nasty, grinding noise. Is his transmission slowly tearing itself apart? Next up, Tom and Ray help Jeff tell the difference between failing brakes and super-automotive German sophistication - and toss in a little advice for driving on glare ice, too. Why is the corner of Robert's car dropping precipitously every time he backs up in the morning? Our fearless hosts suggest a diagnosis technique that involves an expendable mechanic. In Stump the Chumps, we pay a return visit with Michael from Atlanta. Was Ray right that the sucking sound was actually the motor mount - or was Tom closer to the mark, when he posited that the last of Ray's brains are slowly disappearing? Catherine is wondering if it's time to pull the life-support plug. Does $1,200 spell the shredder for her '92 Saab 900? Speaking of repairs, could it really be that both of Mo's cars need exactly the same service, or are the nice fellows down the street just looking for a quick boat payment? Finally, it's one our favorite topics... automotive practical joke revenge! Gail's out to even the score after a few fellow teachers covered her Mini Cooper in jingle bells - and, what do you know, Tom and Ray just might have a few ideas for her. All that and more, this week on Car Talk.