This week on Car Talk: meet our new best friend Nuccio, and his wily foe: a squirrel that decided to use his Acura's wiring harness as a nut storage pantry. Is he doomed to a life of collecting acorns as rent, or can Tom and Ray help squirrel-proof his car? Also, a lesson in why a gas tank abhors a vacuum, and why Ray's high school friends abhor him. Meanwhile, look out Dave! Your neighborly wife "The Waver" calls in with her side of the story, and guess what? Riding with you is no picnic, either. Then it's off to Santa Clara, where Tracy discovers the perils of not having the radio on. And, Sally's Close Encounter of the Waccabuc Kind. What other explanation is there for the burst of noise and flash of bright light in her Explorer? Finally, the guys help a town save 10 million bucks in less than 3 minutes. All that and more, this week on Car Talk.