Well, that’s one way to mash potatoes

Yahoo! News
ROME – A woman in a town near Naples [Italy] got an unwelcome surprise when she bought a sack of potatoes at a nearby market, put them into water to peel and discovered one of them was a hand grenade apparently left over from World War II.

…alarmed [the woman] called neighbors, who in turn called police. Officers detonated the grenade in a park on Wednesday, state police said.