Answer:
Use me to reward good behavior.
What can you catch but not throw?
Some try to hide, some try to cheat, but time will show we always will meet.
I fly yet I have no wings. I cry yet I have no eyes. Darkness follows me. Lower light I never see.
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
I flow from the Homerβs mouth when he sees doughnuts.