Have you ever been very tired?
Have you ever been very thirsty?
Could you ask for a drink of water?
Can a horse ask?
Don’t you suppose animals suffer terribly with thirst?
What would a horse say if he could talk?
Can you drive?
Did you ever stop to think that it is because a horse’s mouth is so tender that the great strong animal does what the driver wishes?
What do you think about jerking the reins?