Bring Back versus Take Back

                             - My shirt didn't fit so I had to bring it back to the shop.

This is what you would say when you are in the shop, explaining why you are returning the shirt.

A -------------------> B        Home -----------------> Store

Implies movement TOWARDS something.

- My shirt didn't fit so I had to take it back to the shop.

This is what you tell a friend later, when you are no longer at the shop.

A-------------> B ------------>C       Home ---------> STORE---------> Friend's house

 Implies movement AWAY from something.