Cail and her dog,Sam, are standing at the street corner.They're waiting for the catsto go by. They want to go across the street .She is waiting for Sam to decide when they should cross.
some blind people use special,trained dogs to help them tell when and where they would go.But not every dog can do these .A dog for the blind must be clever. The dog must be trained at a special school. He is taught to walk close to the trainer'slegs.He is taught to walk as fast as his trainer does .The blind man goes to the school too. He practices with the dog .He holds the leather belt around the dog's neck tightly.
in this way he feels the dog's movements and knows when and where to walk .
At the street corner Sam doesn't watch the light.It'smot because he's careless.It's just because dogs can't tell red lights from green ones.He is trained to watch the cars ,and tell what the time is for him and Gail to cross.
Sam is important to Gail. He does her seeing for her.He keeps her with danger. but sam is not only Gail's eyes.he's her best friend,too.