I let my friend borrow my car today
That was so nice of you.  What did they need to use it for?  Were you able to live without it?
I was fine until she brought it back with no gas and left trash allover the seat. I couldnt believe it
What?!! That's terrible.  I don't understand how people don't take care of things that don't belong to them when its a privilege to use borrowed things.  
I know. She lost that privilege