I am able accept that hank would kill a fluffy grunt, but I think stomping on it's corpse was overly cruel for hank as he just kills things pretty quickly and linger on it. What would be more understandable is Sanford and Tricky because Sanford is torturer and Tricky loved to toy with Hank, but I feel they wouldn't stoop so low to specifically kill fluffies, but I am not the one to say what or what they won't do, and what they would do is just based on one's own ideas on how the characters because Kranks probably won't answer a stupid question like that.