When I was in St Richard's for over six weeks, with sepsis, a few years back there was a constant flow of people that had been bitten by these blighters, trust me it's not just a wasp sting for all, some faced far worse outcomes.
We've had two in our house in Arundel and last Summer I was in hospital with a guy who'd had several operations on his hand after being bitten by one of the little blighters!