Grenade found at madcap Yorkshire inventor’s home causes evacuation of village The daughter of the late much-loved madcap inventor Wilf Lunn said he would “have loved creating such mayhem” – after the discovery of a grenade while clearing out his home led to an evacuation in the village where he lived. Eccentric presenter Wilf Lunn appeared on television screens across the country in the 1970s and 80s, known for his wacky inventions, big tinted spectacles and straw boater – which often caught fi