He began stacking his quarters in little towers just to kill his boredom. There isn’t anything unusual about this.
# Stage 2: Starts pushing the coins over the edge.
By now he had a few towers of coins on his table. He began pushing them over the edge of the table slowly with the help of a ruler. This truly makes him a crazy person, who would take the pain to stack his quarters just to push them over the table. Right?
# Stage 3: Magic
Magic! The moment he started to push the coins over the table, instead of falling on the ground, it maintained it’s shape while hanging over the edge of the table. And mind it, he did not use any kind of adhesive.