GMTA! I thought of that a dozen times, like you say my wine isn't poisoned, then you drink mine and I'll drink yours...
But too late. It won't happen again and that podium will have disappeared...
“you say my wine isn’t poisoned, then you drink mine and I’ll drink yours...”
In the movie Fallen Sparrow, the hero switches glasses with the host and says “An old Borgia custom”. Neither glass has poison.
The next time they drink together, the host has poisoned his own glass, knowing the hero will switch glasses again.