The reason why they used nail polish to deceive the passengers from Simon’s leg wound is because one of the nail polish bottles had red ink instead of actual nail polish. Second, Simon wanted to fool everyone that someone else is the murderer by “harming” himself and throwing the gun away. People would believe a wounded man rather than a man who’s unhurt. This was all an elaborate scheme that Simon conjured up.
–Good answer.
–Prof. Scanlan