[Jonty30]

The engineer would place the glass of alcohol near somebody and then go tell the supervisor that the person near the glass stole the alcohol.

When the person, who is accused of stealing it, is dragged off, the engineer would then pick up the glass and carry on.

That’s how they did it in the old Soviet Union.

[Freelance Warrior]

place the glass of alcohol near somebody and then go tell the supervisor that the person near the glass stole the alcohol.

This is not an engineerial solution either.