From Yahoo News:
A 74-year-old Italian grandmother who bought a sack of potatoes at the her local market found a live grenade among the spuds.Link
"I went to the market to buy some potatoes and that's where the bomb was. But this bomb was covered in dirt, and I put it in water and got all dirt off. And then I realized 'It's a bomb'!"
To the woman's relief, police and explosives experts in the small town of San Giorgio a Cremano, near Naples, recovered the grenade and safely detonated it on Wednesday.