Hahaha,I don't know why I find that funny,but I do. But I think that what we have is Norway rats. I found a pile of rat "pellets" in our basement. Each pellet was probably an inch long,at least. So I'm thinking size wise about cat sized,or small/female cat sized. My friend had a pet rat one time,and it was average sized,about 6-8 inches long for body length,but its pellets were only the size of mike and Ike's,and that was the big pellets. So that is my reasoning for the size. That also tells me that I have a colony of rats,and that the pellets I found were from the alpha rat in the pack/colony. Either that,or master splinter is lurking underground somewhere,hahaha,and his workers are cat sized. But anyway,that would explain why my dog constantly gets fleas,and why me we get bit up by them even when the dog is treated,and it would explain why the cats aren't showing up with dead rats ever,and why they wander to catch prey, even though we always have plenty of mice at home base. Our cats are all outdoor though.