We ended up adopting Fred due to his incorrigible stubbornness. Originally bred to track game, basset hounds can be amazingly persistent. It sometimes appears that when their noses are working, their hearing shuts down.
Fred, however, could hear you all right. Sometimes, he'd even glance your way as he snuffled along a rabbit trail. But you just had to go fetch him. Fortunately, Fred was never super-quick and took no evasive actions -- although you pretty much had to drag him home.