Today I was sitting on the floor making a toy in Noodle's room and he was running around on the floor. He got up on his cat carrier that we use for the vet monthly to get his nails done and kept climbing on the door of it. So I opened the door and he waddled right in. It has a clean towel in it for next time and he started rubbing on the towel and making squeaky sounds. Then he started pumping his neck and I think he regurged a little and tried to feed his foot He kept doing this 4-5 times. So I ran out of the room to get my iPad for a video and when I came back he was sitting on the door of the carrier. He hopped right back in so I sat down and opened my iPad. He ran out at me trying to eat the iPad and my leg. So I quickly closed the carrier and put it up in his closet. I was a little nervous about picking him up but he seemed okay and I put him in his cage. What is this?