Liquid Vanish & Production Glass

Magician acts as an absent minded professor. he displays a sheet of newspaper to the audience - front and back. he then proceeds to make a cone out of it. He then picks up an empty transparent glass and places it into this cone. Almost immediately, absent mindedly, he takes the glass out of the cone and places it on the table. He then picks up a glass full of milk and pours the milk into the paper cone. Suddenly, he realizes that the empty glass has not been kept in the cone and that the milk has been directly poured into the cone. To correct the mistake he now picks up the empty glass and places it into the cone.