Captain Slinky was a ferret, named for is method of climbing and descending steps, and for his rank among ferrets. Rocky was a cat, named after a Beatles song.
Rocky was trained by a diligent pair of young boys to stalk and ambush toy trucks pulled on a string. Captain hid used q-tips and cotton balls under couches and furniture, probably for a rainy day but possibly for a sculpture he never got around to completing.