A young boy in a green shirt wearing a blue harness stares at a white dog in a red harness while taking a walk .
Chances are about even that a boy stares at a dog because he 's scared of the dog .
Chances are about even that a boy stares at a dog because he 's scared of the dog .
It is certain that a boy stares at a dog because he 's scared of the dog .
A boy stares at a dog because he 's scared of the dog .