Shooting oneself in the foot

"He couldn't possibly cheat!" Director Wang rejected Shen Feng's suspicion outright. "This competition is absolutely fair and just. There are ten pills prepared for the competition. I personally designated the pills to be used in the competition one minute before the competition." "And only I and a few referees know the formula for making the pills!" When everyone heard this, they stopped questioning and all looked at Ted Jauncy in surprise. "I never thought that Ted Jauncy would be so capable....