Many years ago, when I was married, my husband and I lived in a very old house owned by the company he worked for. We had the biggest roaches I have ever seen. Nothing we could do would get rid of them. Our cat at the time, Shrimp Boat, was on constant watch. She would catch those big bugs and carry them around proudly. To my knowledge, she never ate one, but I was glad ot have her around to catch and kill them. I think a cat who is interested in a moving object, insect or otherwise, is one of the funniest things I have ever seen. Great story!