The customer is always right claims the customer makes to be proper, and if we always settle them at face value, we shall be subjected to inevitable losses." The work concluded "If the customer is made perfectly to understand what it means for him to be right, what right on his part is, then he can be depended on to be right if he is honest, and if he is dishonest, a little effort should result in catching him at it." An article a year later by the same author addressed the "caveat emptor" aspect while raising many of the same points as the earlier
A Caveat or Warning for Common Cursitors the Peace, but there is no evidence for this. However, in 1550 he was appointed to collect tax in Kent, and in 1554 and 1555 he was a member of the important Commission responsible for the Thames and its tributaries from near Southwark to Gravesend. A fellow member of the Commission was responsible for the creation of the Bridewell in London, and Harman was clearly acquainted with developments in law enforcement there. The "Caveat" is dedicated to Bess of Hardwick, although that does not mean that she was known personally to Harman. There are literary precursors to the "Caveat", including