Actor Gary Busey hit a low in his drug addiction days when he found himself snorting cocaine off his dog.The Big Wednesday star, who claims he has been sober for 13 years, couldn't help himself when his pet pooch rolled in a supply of the drug.He tells U.S. news show Access Hollywood , "I went in like a cropduster with my nose flying first and snorted the cocaine off the dog."But he got more than he bargained for: "You get a little bugs, you get little hairs, you get grease and goo from the ground; it's not at all a healthy thing to do. But when you're an addict, you don't think of health, you think about destruction of yourself unconsciously."