Tidings not Burdens are not real cards for a real game, nor were they meant to be. They were designed as joke cards to surprise a friend with a "what in the world just happened moment." After surprising your friend, you take the card back and tell them it was a joke. Everyone gets a good laugh. You keep playing till the end.
That's how I thought of it. It's very funny, but it would ruin a game to have it end in a flop like that.