This week on Car Talk, Wendy's Honda was fogging up, but only when her husband was in the car with her. Tom and Ray postulated that hubby's breathing was causing the problem, and suggested Wendy experiment by having him breathe through a snorkel, out an open window. Now Wendy's back for Stump the Chumps with a full report on the Great Snorkel Experiment. Elsewhere, Adrienne found the perfect birthday present for her husband--700 pounds of rocks! Can her Saab handle the 300-mile trip, or does she need to transport one rock at a time? Also, Steve's DIY brake repair has resulted in his truck taking out two car ports; Matt's CRV is not putting out heat, which is a big problem, since Matt is in Anchorage; and, Rain got a rude Welcome Home from her Acura, after leaving it parked for three months: mold, and a thriving ant colony. All this, plus a tale of a very smart car radio, and lots more, this week, on Car Talk.