An otherwise well-behaved Fluffy venting frustrations on humanoid toys, the same way humans would vent their frustrations on a Fluffy. Emulating the same abusive behaviors they’ve seen or accidentally discovering the ways humans torment Fluffs.
I loved this comic @ShititsMe shows just how idiotic a Smarty is when they challenge a human. Best part was when the herd took out all the anger on the smarty!
Sorry Smarty but your hooves are too short to box with people!