The Berenstain Bears (1985)

S01E02 The Terrible Termite

Raffish Ralph encounters the Terrible Termite, a creature capable of devouring wood in mere moments, and hatches a plan to use him to intimidate those who refuse to purchase his "termite insurance." However, the Termite soon catches on to Ralph's scheme and decides he won't cooperate any longer. Brother and Sister then intervene, releasing the Termite to threaten Ralph's houseboat unless he agrees to abandon his insurance venture.