Howling wolf

Man, this is tricky, purely because I wouldn't want one of these, rather a pack of them; Wolves, how cool would it be to walk a pack of wolves everywhere? Or maybe even a trained Polar bear that I could ride to lectures on. I'd want the most imposing and powerful wild animals as pets, just because they're seriously impressive creatures. I imagine on the one hand I'd become more active if I had to walk a pack of wolves every day. But I'd become lazier if I could ride a polar bear around. Swings and roundabouts really. Either way I'd have to become and absolute tank of a man to command respect from either of the afformentioned species. Relationship-wise I'd probably find it harder to make friends! But that's what happens when you're in posession of such animals, one would imagine...