‘Puffing’ gives couple big scare when car with beloved dog inside gets stolen
DENVER -- Cold temperatures might make it tempting to warm up your car by leaving it running with the keys in the ignition. It's called puffing, and not only is it illegal, it makes you a target for thieves, like the one who stole Sydney Muller’s car Thursday night with her 7-year-old Jack Russell terrier, Piper, inside.