Grandpa, for your birthday, I want you to experience something you haven't experienced in all your 80 years on earth.
You can try, but I've done it all. Camping in the Kalihari, rock climbing in the Himalayas, running naked through downtown Detroit ...
How about if we take a bit of hair from your beard, clone two copies of yourself with Y chromosomes replaced by copies of your X chromosome ...
I see where you're getting with that, three-ways with my nubile young identical twin sisters. Unfortunately, I already did that during the War, over in Normandy.
Hmmmm ... something nobody's done. How about I just take you to the "From Justin to Kelly" film that opened this week?