Because I don't have the power to decide. It depends on the match officials that will allow you to bring the liquid up to it? It is a rule of airports and security matters. If you do not drop it, you might be falling on.
Since I do not have the authority to make decisions. It depends on the authorities there to give you a more fluid or not. It is the law and the airport security. If you do not throw it, you might fall down.
Because I don't have the power in decision making. It depends on the staff there to give you the liquid up to it? It is the rule and airport security. If you leave it, you may miss the plane.