This was a contrast and contradiction because just earlier in the story Johnny killed Bob and the police were looking for Pony and Johnny, this made Pony and Johnny have to change their appearance so the police or anyone could notice them.
Aha moment chapter 7: pg.117
This was an Aha moment because, Cherry told Pony earlier that things are rough all over. Pony thought that Cherry was lying until Pony talked with Randy it hit Pony, Things are rough all over.
This was an Again and Again moment because, just before the group would set out for the rumble they were messing around, when Soda got on top and said I'm a greaser. His buddy started to chant Greaser over and over.