The poster industry members of CAP operate a poster pre-vetting sanction to deter abuse of the medium and states: “If the ASA rules against a poster on the grounds of serious or widespread offense or social irresponsibility, the poster advertiser becomes a candidate for mandatory pre-vetting.” The Committee of Advertising Practice (CAP) is the self-regulatory body that creates, revises and enforces the Advertising Standards Authority Code. It appears that “Cock” was censored based on this pre-vetting, which resulted in an amendment that removed the play’s title completely.
Written by Mike Bartlett and produced by Elliot Harper, “Cock” centers on a gay protagonist, John (Bailey), who lives with his boyfriend, M (Egerton/Harper-Jackson).