Intermediary: An intermediary is a person who acts as a mediator or facilitator between two or more parties who are in conflict or dispute. The intermediary listens to both sides of the argument and tries to find common ground and a solution that satisfies everyone involved.

Hijack: To hijack means to seize control of a vehicle, such as an airplane, train, or car, in order to force it to go to a new destination or to demand something, often through the use of threats or violence. The term can also be used more generally to describe the act of taking control of something that belongs to someone else without their permission.