The UK government has accidentally published a poster urging parents to shoot their children if they catch rabies.
"If you suspect your child has rabies, don't hesitate - shoot," it reads.
The poster was published in a magazine on the history of UK government communications - but obviously wasn't meant to be.
"This image is a parody of 1970s public information campaigns and was mistakenly used in a publication for illustrative purposes," a spokeswoman told BBC News.
- Mortified parents accidentally feed kids pet treats
- US woman and 20 friends treated for rabies
- Australian mothers accidentally feed kids dog biscuits
It originated on a Twitter account for the fictional Scarfolk Council, which parodies a small British town "that did not progress beyond 1979".
"Wow. This has made my week," the account's owner, Richard Littler, tweeted. "They mistakenly included a Scarfolk poster which encourages the killing of children. Clearly, nobody thought it was too extreme."
He believes a fan of the account may have "infiltrated the civil service".