Is this strange occurance happening at any other houses?

My Christmas tree seems to be rejecting all ornaments (can't spell, sorry!) on its lower levels. Everytime I turn my back, when I look back around, one or two colored balls are on the floor. I even found one in the kitchen! Strangely, it doesn't seem to mind decorations higher up. I've asked Grey Girl and she assures me she knows nothing on this matter but has been keeping watch for me diligently under the tree for some time now. Bless her heart, she's not the greatest watch-cat. The longer she sits under the tree, the more balls it flings off! How could this be happening?!