Sounds to me like you are rationalizing being a thief. Come clean, tell him you smoke & that you've been pinching HIS weed. It dosn't matter if he gets lb's at a whack, stealing is stealing.If he finds out that i was taking his bud, it would be by me telling him. He's def not gunna find out on his own. He's 54 and doesnt have time to pay attention to how much weed he has at a time. Either way, he wouldnt be mad at me taking his weed after he finds out i smoke. I think he would be comforted because i was getting it from a safe sorce.
In the long run he will think you "more a man" for owning up.
I would.