What role does trust play in Eddie's relationship with another character in Buried Onions?

In Chapter Two, after a few days of working for Mr. Stiles, Eddie begins to get comfortable and Mr. Stiles begins to trust him. Mr. Stiles needs some things taken to the dump, and he asks Eddie to make the trip for him. Eddie is very excited, because he will actually get to drive. He is ecstatic that Mr. Stiles trusts him enough to allow him to borrow the truck.