You sound like a good friend man.
I dunno if I would honestly give away my first piece though.. I mean, you said he won't likely ever smoke again and a nonsmoker doesn't need to hold onto a piece that could just get you in trouble with the law, you know?
You two should get really baked together, just smoke blunts back to back. Keep smokin til you both have the worst munchies ever, then go to a buffet that sounds amazing at the moment. Then go and blaze some more