Beware: Drunk and jobless wasps They say billions of the insects are currently at their most "aggressive and dangerous" as they have finished supplying their queens with nectar. With no work to do, they have more time to feast on fermented fruit, leaving them bolder and more likely to sting, Paul Bates, managing director of Cleankill Environmental Services, said. "Worker wasps have finished their life's work as queen wasps have stopped laying and don't need food bringing to them," he said. This means that the workers are free to go out and enjoy themselves which includes stealing meat on the barbecue - there will also be drunk wasps around who have been feasting on fermented fruit and will be extra bold. This summer has seen record numbers of wasps triggered by the cold winter and late spring. Experts said millions of the insects had emerged from their nests three weeks later than normal following an undisturbed hibernation.