It all began when Tux discovered that Beyblade arenas make comfortably secure beds in which to nap.
One particular nap took place on top of a Beyblade, likely because Tux couldn't figure out how to remove the Beyblade from the arena, and from that point forward Tux became particularly protective of any Beys left in the arenas.
The kids called me into Will's room one afternoon. When I arrived they were laughing at Tux, who was making the face below (we called it "step away from the Beys…") and shielding two Beys. Tux attacked any hands - even Will's - that came within six inches of his toys.
He even shielded the Bey from us when we did dare approach.
I guess we know what Santa will be bringing Tux for Christmas!