He did say to Ben "After all you know I was a commander in the Navy" usually you would say "For all you know, I was a ..." I guess it depends on how you interpret that "After all, You know I was in the Navy" or "after all you know, I was in the Navy" meaning 'for all you know I could have been in the Navy'. He was totally soaked which I thought was odd. If he didn't really blow it up...the Others would be able to find it pretty easy don't you think? He couldn't have moved it very far.