By MATT WIXON My favorite commercial right now starts with an old, beat-up truck pulling up to a drive-thru. The truck stops, and suddenly a large metal claw emerges, picks up the truck and appears to peel its trashed exterior to reveal a brand-new Toyota truck. The new truck is set on the ground as this appears on the bottom of the screen: Warning: Do not attempt. Silly warning, you’d say, but I just think it needs some clarification. If I am able to commandeer a giant wrecking claw from some junkyard, or perhaps find a Home Depot with a really big rental operation, does the warning refer to the dangers of using the claw in such a manner? Or does “do not attempt” refer to thoughts of invoking some kind of David Copperfield magic, or perhaps evil spirits, to turn my clunker into a sweet new ride? Car ads are the greatest for nonsensical warnings. You’ll see cars doing slalom courses on snow-packed roads, performing 90-degree slide turns, skidding on all four wheels and racing across s