In his 36 years driving for UPS, Bangor native Jimmy Cook has met every sort of dog. Terriers and chihuahuas that yip with excitement upon his arrival. Labradors with tails that wag so hard they nearly take off into the air. Big, sweet, lumbering pups like Clover, the Bernese Mountain Dog at 44 North Coffee in Deer Isle, all of whom can smell the Beggin’ Strips dog treats Cook comes armed with every day, as soon as his truck pulls up. Cook’s tenure with UPS came to a satisfying close earlier this month, when he retired from the company with an incredibly rare, accident-free track record.