Sam, the Sam in "Casablanca" I mean, was wrong about a kiss. It's not just a kiss. It satisfies an impulse, a physical and emotional urge, for sure. But it's also and most importantly a gesture in and of itself -- a sign. "The Kiss of Death."
When next we meet, you will be wearing the uniform of The Bandit Princess! We shall not embrace. We won't even acknowledge our longing to embrace, for we won't be equipped to give it expression. It will be as if a prison visit, with three inches of hostile plexiglas between us.
And this when the crisis is past.