Duke speaks his mind, & whats on his mind is usually exactly whats in front off him. Duke is the "kid" of the ferrets; he is naive, excitable, childish & relies on his siblings to explain things for him. He has a curiousiity about the world around him, as well as a lck of comprehension about complicated matters, such as when he asked Breel a bunch of questions what it was like being dead. He also lacks a filter of sorts & tends to sayy whatever comes to mind, however inappropriate.