Board Thread:Character Discussion/@comment-14210692-20130802051826/@comment-5249332-20130802220355

Well, when your dad drops you down a portal and then you sacrifice yourself to a creepy shadow-thing in some twisted version of Neverland and then somehow get back to the original land you ended up in, I'm sure that changes you.

Plus, when Bae came to this land (either when he first met Wendy or returned from NL), he had no money, no job, no education, and no way to get one. It's understandable that he would turn into a theif. He had no idea how this world worked, and no one (presumably when he returned) to help him figure it out.