Eh, the math works out the same whatever is done in the case of him revealing a car. Reasonable options seem to include: 1) contestant wins (notion being the

Eh, the math works out the same whatever is done in the case of him revealing a car. Reasonable options seem to include: 1) contestant wins (notion being the contestant retains the option to switch to any door, and now knows where the car is) 2) contestant loses (notion being Monty picked right and "won" in place of the contestant) 3) Round is aborted, things are repositioned, and the round is replayed (doesn't require any drugging, aborted rounds may or may not be aired but player learned nothing relevant to future rounds).