David Nail recently returned to his hometown of Kennett, Mo. to tie on an apron and serve Blizzards at Dairy Queen. That's how the 'Red Light' hitmaker made a few extra bucks during his teen years. He worked for a friend's mom, and based on his comments during a recent episode of GAC-TV's 'Day Jobs,' he wasn't exactly a model employee. "I can't sweat, that was my rule back then and that's my rule now," Nail said, before later adding, "I'm a really good Blizzard maker ... and I like to taste them before to make sure that they're on par." That actually got him fired. Yuck!