Someone's gonna lose their job.
They probably expected a goody bag of some sorts as a going home gift after the primary school trip to Sainsbury's.
But what the 42 children - not to mention their parents and teachers - did not expect was to be given a book with explicit illustrations of sexual positions.
And the advice under the dozen drawings, which feature in a section about saving water by 'bathing with a friend', reads: 'Save water. Have fun. Just get out before everything becomes wrinkled.'