This week on The Best of Car Talk, one listener undertakes a bold, yet reckless experiment to find the correlation between drinking iced tea and needing to take a haircut. Is the real question "if", or "how fast"? Elsewhere, Robert bought a used truck and thinks its previous owner misnamed it. Can he re-christen it without changing its identity? Also, the only way to get into Paul's $200 car is by climbing over the hood, which, to nobody's surprise, has fried the battery; Maxine's mechanics 'fessed up to putting the wrong fluid in her brake reservoir, but maybe not so much about which fluid; Christine's Accord has become home to an ant colony; and Ray shows off his deep understanding of dew dynamics. Or is that "doo doo dynamics"? All this and more, this week on The Best of Car Talk.