Re: The problem here is bigger than one pub...
"If you read the link you provide you will find that the most recent death from a WW2 butterfly bomb was in 1981. The most recent butterfly bomb find was "on 28 October 2009, by an 11-year-old boy in a secluded valley close to a heavily bombarded airfield."
They are still finding huge bombs in German cities from WW2. People are killed regularly.
What is your point, that we are still at war?