How does john change after the fight with the other driver boy in "water never hurt a man"? john becomes arrogant and wants to be known as a bully of the canal like his father. john loses faith in his ability to defend himself and is afraid his father will be angry with him. john feels being a driver boy is too hard and wants to tie-by for the night and lie in his bunk. john has gained a new confidence in himself and wants to continue through the locks.