Since I already made custom backstories for Prosciutto and Ghiaccio, I decided to give Pesci a try.

Pesci was born into a large family, and was the only one with a learning disability. Due to mental illness/disabilities not being as well-documented as today, Pesci faced a lot of bullying, even from his own siblings, who called him a mammoni/mama's boy. This resulted in a lot of anxiety, but Pesci was still capable of doing more relaxing/leisurely activities like fishing. After having enough of their crap, he joined the mafia to prove that he's not as stupid as everyone says he is. Prosciutto, despite being just as harsh as everyone else, took Pesci under his wing because he could understand being picked on for seemingly no reason (ties in with the backstory I gave him).

What do you guys think?