Life in these prisons, however, was far from pleasant, and the inmates were forced to pay for their keep. Samuel Byrom, son of the writer and poet John Byrom, was imprisoned for debt in the Fleet in 1725, and in 1729 he sent a petition to his old school friend, the Duke of Dorset, in which he raged against the injustices of the system. Some debtor prisoners were even less fortunate, being sent to prisons with a mixture of vicious criminals and petty criminals, and many more were confined to a single cell.