Pentangeli Insulted.

Before the meeting with the Rosato brothers. Frank was given a C note, which he considered an insult. Why made him think he was insulted? Did he think it was beneath him to take a "tip" much like a maître d? Did he think it was being disrespected by being offered a "handout" like some bum on the street?

https://www.youtube.com/watch?v=e1nNx_lh6aA

Both of those reasons.

No doubt about it.