For his first three years in Shawshank, Andy is repeatedly the target of a gang of prison rapists called "The Sisters". After a particularly brutal attack led by an inmate named Bogs Diamond, Dufresne is found in his cell beaten very badly, but never will say by whom. The Sisters' attacks pause for a time but do not stop. One day, Andy and other prisoners are tarring a roof when Andy overhears a senior guard named Byron Hadley complaining about the amount of tax he will have to pay on a sum of money bequeathed to him. Andy tells him a way that he can legally shelter the money from taxation, and even offers to complete all the necessary paperwork for Hadley, in exchange for three beers apiece for the other men on the tarring job. From then on, it becomes known in the prison that Andy has protection from the guards from all threats, including that of the Sisters.