[Pessimist]

Heavy Water?

[MplsSteve]

LOL!

It's very possible!

[GSlob]

"Heavy Water?"
Actually, once upon a time (in a different realm, and ages ago) a group of us found a large vial of deuterated ethanol, all covered with dust - nobody was needing or using it. And so we made heavy vodka by diluting it with heavy water to 40%. It was no better than regular vodka, I tell you.