But It Was A Geniune Mistake, Officer
Bomb disposal teams were called in and buildings evacuated after a Monty Python film prop was mistaken for a hand grenade in Shoreditch, east London. But bomb squad experts realised it was in fact a copy of the ''Holy Hand Grenade of Antioch'', used by Eric Idle to defeat a killer rabbit in ''Monty Python And The Holy Grail''.
FOOTNOTE: Idle minds.