Arnold and the Chipmunks

Everyday Hubby takes Arnold, our cat, out for a walk on his leash. He is getting very well trained. Many times we let him loose in the yard, while we are there, still on his leash but the leash dragging behind him. He has been very good about staying within the confines of the yard. He diligently watches for chipmunks. The other day he caught one. He bit it a little too hard (for a cat) and instantly killed it. This was a great disappointment to Arnold who kept dropping it and poking it, hoping it would do something. Today Arnold became quite confused when there was a chipmunk in front of him and another ran behind him over his leash, He didn't know what to do.