Answer:
It belongs to you, but other people use it more than you do. What is it?
How can a pants pocket be empty and still have something in it?
Consuming food would be pretty tough without these chompers
I am not alive, though I never die, to no one I've ever told a lie, today I can be god's warrior, and serve him with no horror, but tomorrow I might be devil's knight, for I am what ends the light.
When it's dirty this should never be aired in public.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.