Just put up our new tree today and the cats stalked each other around it all afternoon, lol. This tree is flimsier and "balder" than the tree we had last year so Tigerlilly has been using it to play peek-a-boo with Tucker. She stands up on her hind legs and peeks through the empty spots to see where he's at. I foresee her knocking the tree over before the month is over, lol. She didn't really bother it last year but now that she has a play mate, the stakes have changed.