Day's return to Aldersgate coincided with the third printing run of his father's highly successful publication of
John Foxe's
Actes and Monuments. His father decided to put Day in charge of the printing of this edition, despite his son's youth and inexperience. The result was a disaster, and the third edition was criticized for its poor quality. As a result, Day's father imposed strict constraints on him to maintain close scrutiny of his work, which led to a strain in their relations. Day hoped to obtain greater freedom from his father and independence as a printer. He was allowed into the
Stationers' Company, of which his father was also a member, and in 1578, he printed his first publication: his own translation of Foxe's
Christ Jesus Triumphant. He also started pirating his father's works, issuing illicit editions of
The ABC with Little Catechism and
The Whole Booke of Psalmes, Collected into English Meter. His father, who had by now become a Master of the Stationers' Company, was enraged. In 1580, with the help of the Company's wardens, he entered his son's premises and seized his printing equipment and stock by force. The public act may have been an attempt by John Day to send a message that he would pursue issues of piracy, no matter who the perpetrator. ==Work as clergy==