Why do you think Tolkien named the chapter "A Thief in the Night" instead of "A Burglar in the Night"? Use text evidence.

In my opinion, Bilbo is seen as a thirf rather than a burglar because burglaring was his job. He stole the Arkenstone, so that Thorin couldn't have it. This doesn't mean he made the wrong decision..... only that it is questionable.