Any chance that Cubby has been "helping" you out with the shelter blankets? He might have eaten some thread or fabric scraps that are causing problems. Kuhio once ate about 6 inches of yarn from my crochet project. Poor girl was dragging this very nasty yarn all over the house. "Most" of it had passed but there were a couple of inches sticking out that were freaking her out so she was running around the house trying to get away from it. We finally trapped her. Hubby held her down, while I got the "fun" part (naturally) and sloooooowly pulled the yarn through. Yuck!