This week on The Best of Car Talk, Sarah left town for a weekend and came home to an array of disasters, including a minivan that smells like urine. Did her kids and husband hold a Physics-defying peeing contest while she was away? Elsewhere, Sissy's husband may blow out the bogosity meter with his argument that she needs to park with the wheels straight to keep her car from going out of alignment; Paul's life turned into a country song when he totaled his car, his wife left him, and his dog died; and service advisor Charlie needs help figuring out how to blame his customers for their short brake life. Also, on Stump the Chumps, did Tom and Ray get the heat working in Bob's Cavalier, or did summer get the heat working in Bob's Cavalier? All this and more, this week on the Best of Car Talk.