Coob like job but no like boss so now no like job, what do

Big greet, me Coob. Am count rock for living. Am good at count rock, even make thoughtful cave painting where draw big line near tiny line so even caveman who no count good understand.

All good for many suns until Coob boss hire new young caveboy who also count rock. Caveboy think best at count rock but not true! Him paint ugly and am big jerk. Coob am best, whole tribe know this, but Coob no jerk about it. Boss and caveboy talk sport ball and become friend. Coob no like sport ball because am count rock instead! Now boss give caveboy all fun rocks to count. Coob think am go count rock for other tribe but Coob with him tribe many many suns. what do