The little boy sits on the man 's lap driving the blue tractor on the winding road down the hill .
We believe that a father is letting his son help him drive a tractor around outside .
We believe that a father is letting his son help him drive a tractor around outside .
There is almost no chance that a father is letting his son help him drive a tractor around outside .
A father is letting his son help him drive a tractor around outside .