DALLAS (TIP): Think before you leave your car idling to warm up. You may soon develop cold feet. Leaving an unwatched car idling on a Dallas street is like wrapping a steak in bacon, throwing it to a pack of stray dogs, and hoping it doesn’t get eaten. The numbers are a bit stupefying. In the month of January, which is all of 15.75 days old, thieves have made off with 60 cars that had been left to warm up. That’s four people every day.