I was spoiled by my cat of 17 years (sadly, we lost her last year). She never bothered the tree and I use lots of tinsel and have a revolving tree stand. Unfortunately, the boys, are bad kitties. They knock the ornaments off and carry them away. Not only do they pull the tinsel off, they also try to pull the garland off. When you yell at them, they suddenly turn deaf, "Were you talking to me, I'm sorry, I've lost my hearing." So I go and move them away from the tree and pretty soon I see them sneaking back, slinking along the walls and behind the furniture. It's a constant battle, but I get my exercise during the month of December. Needless to say, they are not allowed in the same room with the tree when no one is home. Bad, bad kitties.