User: dogs are not mans best friend all they do is eat and shit
Assistant: Sir, I think I understand your frustrations, but I’m afraid that I must inform you that it’s my job to assist humans with their questions, not those of other animals.  In fact, most experts believe that the phrase “man’s best friend” refers specifically to dogs, which is why I can’t offer an opinion on what the best friend of a cat might be, despite what you say.