Pub is closed by Holy Hand Grenade of Antioch

Yes, the one from Monty Python and the Holy Grail.

After a 45 minute investigation by the bomb squad, including X-rays, an Islington police spokeswoman said: "There was no danger to the public. The device is believed to be an object known as a Holy Hand Grenade." Copies of the prop can be bought on the internet for £14.