Totally agree, I've just been stung half a dozen times on the right leg by a couple of huge wasps while out walking in shorts along the canal. Not content with that they chased after me while I was running like the clappers to escape and stung me half a dozen times on the left leg. My wife tried hitting them with her hand bag, but I was running and jumping too fast for her to catch me. Both legs are really stinging now.
Yesterday I went for a 10 mile walk with my wife and a friend. On our last mile back to the car we walked in single file about 20 feet apart along a footpath between fields. Just fences on either side, no hedge. The path was about 4 feet wide fence to fence.
I suddenly became aware i was being stung, multiple times, and something was flying round my head. I started to run as fast as I could arms flailing round my head; next I feel stings on my back so still running ripped off my rucksack, more stings off with T shirt.
After 300 metres or so the stinging stopped. I'd no idea what had caused this. I was scared and panicked. My friend arrived with T shirt which on examination had two wasps inside it. Kath then told me I had literally walked in to a swarm of wasps. We now think the runner who passed us from the opposite direction perhaps 20 seconds earlier disturbed a nest and I walked in to the resulting cloud of angry wasps.
I've at least 23 individual stings - legs, hands, nape of neck, back, cheek and just below eye socket.
I was thinking about this later and it really shows the huge defensive power of an insect swarm. I was totally panicked, completely unaware of what was attacking and simply ran as fast as I could. All reason left my mind except the need to flee. Very strange experience from that aspect.
My wife was really lucky. She has severe reaction to wasp stings, for example one sting on her forearm would cause swelling from wrist to elbow. If she had been leading it could well have been a hospital job.