This week on Car Talk, Leah from Mississippi gets a bonus gift from her local supermarket--a gecko that hitched a ride on her asparagus and promptly jumped behind the dashboard of her Lexus. Now, Leah's worried that the critter might be snacking on wires or starting a family in her car. Also, two lessons on how not to treat a borrowed car. The first comes from Adam, who took his girlfriend's Jeep off-roading and now can't get it out of 4-Wheel drive. The second is from James, who dropped a pen cap into his Mom's Jaguar's gas tank. All this, plus a Kia that may have eaten one burrito too many, and the return of the Puzzler from its summer vacation, this week on Car Talk.