Firewood.  n.

Definition: Perfectly good chewable sticks your designated human will perversely insist on throwing into a metal box which will then eat them.

Clarification: All pieces of wood are yours, of course.  Do not try to reinforce this concept with your human; it is a waste of time.  She will simply look at you, raise an eyebrow, calmly say some nonsense about all sticks in this house being hers, and laugh in a disturbing cackle.  She is human and cannot be expected to understand the nuances of the relationships between dogs and sticks.  Besides, she is the source of all food and treats (treats!), throws the ball (treats!), takes you for walks (treats!), and otherwise entertains you (treats!).  She should be forgiven her ignorance.