no i meant more in that he himself was taken in as an orphaned child and taught survival skills. Roy does this with Edward. Not even knowing the boy, but realizing what he's done, Roy shelters him, brings him under his wing (don't tell ed that) and sends him on missions usually to gain intel while actively keeping him from the worst situations if he can. Probably a lot like was done with him (but obviously he didn't give Ed the etiquette lessons Chris gave him)