How about this scenario:
Two outs in the 9th with a perfect game on the line.
Batter hits a slow roller between 1st and 2nd.
The 1B fields it and tosses to the pitcher covering.
The batter is out by about a step.
The 1st base umpire incorrectly calls him safe.
The runner knows it and tells the umpire that he missed the call.
