Afraid not, in Heathrow airport I was having a salad in some diner place and when I was halfway through a caterpillar came trudging out from under the leaf where he'd been sharing my salad and meandered across the plate. I brought plate discreetly to waiter who first went white and looked ill and then just arrived back at my table with brand new (and much more obviously washed) salad. I was charged for original meal.
In saying that a caterpillar is more than likely a far less dangerous object than bits of metal - though he could have been poisonous I suppose.