I don't know what on earth is up with Harvey. He is the weirdest cat ever. My niece warned me that he had shredded entire bread bags but part of me doubted her because what in the heavens would possess a cat to do such a thing?? Well, left a bag of bread on the table last night and he tore the entire thing up. Didn't even eat any of it, just ripped it up like a dog ripping up tissue paper. Used his teeth to shred the plastic and then just had a field day destroying the slices. When I lock him in the basement, he screams and rattles the door with the strength of a small child. It's actually quite scary. And he will do this for up to an hour.