This is the hilarious moment a distracted dad accidentally knocked down his little son with his bottom after the playful toddler pulls the chair away from him.

CCTV footage shows the moment the boy learns that actions have consequences. He decides to move his dad's stool while the father is about to sit down, picking up toys at their home in Shandong, eastern China, on November 21.

Completely unaware of the toddler's stunt, the dad leans back and lands on the floor. But as he falls down, the child seemingly does not realize he is standing too close and gets knocked down as well.

Although confused and with a sore backside, the father doesn't react to his injury but instantly turns to console the child, who bursts into tears upon falling.