Buildings were evacuated, a street was cordoned off and a bomb disposal team called in after workmen spotted a suspicious object.Here's a related story in the Telegraph which doesn't take advantage of this perfect opportunity to quote Monty Python dialogue.
But the dangerous-looking weapon turned out to be the Holy Hand Grenade of Antioch, made famous in the 1975 film Monty Python And The Holy Grail.
...But when the bomb squad arrived, they quickly established there was no danger and the street was declared safe. In the film, the grenade was used to slaughter a killer rabbit.
Python actor Eric Idle had filmgoers in stitches as he said: "Oh Lord. Bless this hand grenade, that with it thou mayest blow thine enemies to tiny bits, in thy mercy."
..."And the Lord spake, saying, 'First shalt thou take out the Holy Pin, then shalt thou count to three, no more, no less. Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out.
"'Once the number three, being the third number, be reached, then lobbest thou thy Holy Hand Grenade of Antioch towards thy foe, who being naughty in my sight, shall snuff it. Amen.'"
(Via Bruce Schneier.)