Charles Farnum, an Air Force retiree and regular auto hobby shop customer, loosens the bolt to drain the old oil out of his engine at the base auto hobby shop at Hurlburt Field, Fla., Oct. 12, 2012. The auto hobby shop's car specialists will inspect vehicles that customers are considering purchasing to make sure they are mechanically sound. (U.S. Air Force photo/Airman 1st Class Michelle Vickers)