Life Of A Plastic Bottle

Everyone buys me for just twenty, 

But water inside me is plenty. 

Everyone takes care of me until water is inside,

Once it's finished, I just get denied. 

I have anger issues with these human beings, 

When they need me, they are nice, and when they don't, my existence doesn't have any meaning.

They throw me here and there,

At least throw me with some care.