King had to have his left "anal sac" removed and this was about 2 hours after he came home. He was really miserable. It turned out a large part of it was that he couldn't see through it, and the loss of periferal vision really upset him. I had to get a larger cone, and the new one was see through, and he perked right up after one bad night. By the time the stitches came out, two weeks later, he was using the cone as a battering ram on Molly.