Every Home Should Have One is a 1970 British comedy film directed by Jim Clark and starring Marty Feldman. It was released in the United States in theatres and on home video under the title Think Dirty.
The overall concept is in direct ridicule of the then ongoing campaign by Mary Whitehouse on gratuitous sex in advertising and other fields. Certain sections such as the parish council watching entire programmes by which they are offended by to count the offensive incidents, parodies Mary Whitehouse's infamous behaviour of the time.