User blog comment:DarkSkullPirates/More Than Alone/@comment-3119203-20120731183143/@comment-4754162-20120801021655

How about this?

As much as he (Teach) was grateful for WB to accept him into his family, in calling him (WB) father (oyaji), it invoked a feeling of unease due to his (Teach) previous experience with his real father (the one who he killed) and thus he did not truly connect with WB as much as others had because of this. But yet he saw how powerful WB is and how that could influence others into what he wants. With that plus his knowledge in DF (the book from his town schoolhouse) he analysed all DF and found one to be particularly interesting, one which could be used to "obtain" the very power that WB owns. Thus when he came into age, he started searching for this special DF in secret and found it in poor Thatch's hands and the story kicks in from there.

The idea is nothing much, just that because of his bad experience with real father, Teach never really got connected and trust WB