It seems that an unknown person has been going into Waterstones branches throughout the country and moving Dave’s books into more prominent positions. Dave, who often seems to be in the area watching Bromley when this happens, would like to make it clear that he in no way condones such behaviour.
However, if you happen to find yourself in a branch that stocks Dave’s books, and you are tempted to move them to the front, this is the recommended way of displaying them.