At the part where Sparky Polasky is mad at the cheering squad's spirit fingers he picks up a stool and slams it. If you look carefully, the stool breaks before he even slams it on the ground. It just breaks right in mid air!
if you notice, his stool does not break in thin air. if you look close enough you see that before it hits the ground it hits a stretching bar, that's why it breaks.