St Bernard takes boy for a walk

No doubt it started off with a boy taking his dog for a walk, but in the end it was the dog taking the boy for a ride.

In dash cam video just posted online, a teenage boy can be seen being dragged across a road by an eager St Bernard.

The video recorded in the Czech Republic last month showed the boy flat on his stomach clinging desperately to the leash as the dog gleefully runs.

Despite being held back by the boy's weight, the St Bernard is seen easily running at a steady clip.

After crossing the road the dog comes to a stop, allowing the boy to climb back onto his feet.

The driver of the car can be heard giggling hysterically at the bizarre sight.