This week on Car Talk, are you ready for some wacko theories? Dennis in California puts Tom and Ray to the test, pondering his friend's contention that the best way to charge a dead car battery is by turning on every accessory in sight. Is there anything to this notion of "tickling the electrons"? Elsewhere in Wackyland, Jenny is convinced that her Civic has a harder time starting when its gas tank's not full; Linda needs to retro-fit her ATV to make it a good Summer sled-dog training vehicle; and mechanic-turned-sculptor Coby learns what happens when you add a few extra tons to a half-ton pickup. All this, plus some choice Last Words, and lots more, this week on Car Talk.