This is the amusing moment a calf runs and hurdles over a boy's head as he sits on a chair.

CCTV footage shows two children relaxing and eating in their family's cattle pen in Sisaket province, Thailand, on October 27.

One was sitting on a blue chair, casually scrolling on his phone.

Suddenly, two young cows - black and brown - started playing and chasing each other behind the children.

As they ran around, the brown bovine dashed towards the child and unexpectedly leapt over his head before anyone could react.

Both youngsters were shocked and quickly shouted for the nearby adults working in the area to see what had just happened.

The boy emerged unharmed, leaving them shocked and entertained by the incident.