Yep, Alfie has it too. It's like a victory walk as he heads to the back door after performing (almost like a show ring trot) with his tail held level to his back (flag flying high,we say). He also struts past me in similar style in the kitchen every time he takes a toy from his basket and dumps it in the hall, (without playing with it) then returns for another and another and another ...... You can always tell too when he has something that he shouldn't have, by his walk!