There’s no such thing as too much fetch!
There is such a thing as just enough fetch to insure that you collapse on the futon to dream of yet more fetch!
No, Cosmo, Human Mommy can’t play fetch with you right now.
Can’t you see?
Human Mommy is busy being my cushion.
If you really want the ball as badly as you say you do, stop bringing it back to the Human who tosses it across the backyard, away from you, again and again and again.
Logic, Woofies, logic.