Yeah, Daddano was a very intimidating and ruthless person.

Theres a story that during Cain's and Daddano's stay in prison, one quite dangerous inmate called Cain a "copper",so Cain struck the inmate in the face and broke his nose. Than the inmate started to panic and Daddano came to his face and told him to be quiet and explained to him few realities.No one dared to touch Cain because of Daddano's reputation