Which glass of wine is poisoned?#series

Inhale this, but do not touch.

I smell nothing.

What you do not smell is called Iocane powder. It is odorless, tasteless, dissolves instantly in liquid, and is among the more deadly poisons known to man.

Hm.

All right. Where is the poison? It ends when you decide and we both drink and find out who is right and who is dead.

But it's so simple. Are you the sort of man who would put the poison into his own goblet or his enemies? Now, a clever man would put the poison into his own goblet because he would know that only a great fool would reach for what he was given. I'm not a great fool, so I can clearly not choose the wine in front of you. But you must have known I was not a great fool. You would have counted on it, so I can clearly not choose the wine in front of me. You've made your decision, then? Not remotely. What in the world can that be? What? Where? I don't see anything.

No matter. Let's drink.

Me from my glass, and you from yours.

Gastro.

I switched glasses when your back was turned!

Ha ha! You fool! You fool! Ha ha ha ha!