HOUSTON – While postal inspectors gathered evidence, 72-year-old Karen Samford sat in a folding chair, wondering what was to become of her 36-year career with the US Postal Service."People can have mental issues," Samford said. "It doesn’t make them crazy; it doesn’t make them insane. It makes them stupid."For the past 10 years, Samford has been stealing bulk mail, mail that was going to be destroyed anyway, from the Pearland Post Office.She said she stole enough mail each year to fill up a big box truck.