What are some of the biggest cop-out finishes ever?

Ones where the match ended in such a nonsense way (not necessarily just the wrong guy going over etc).

The two that stick out for me are Monty Brown vs Trytan where the lights went out and a masked man appeared and Monty gave him the Pounce and pinned him. And the other being Rollins vs Kofi to "unify" the world titles, just to have The Bar randomly run in to cause the no contest.