Me and a friend once walked through nearby woods, we were teens, and one sudden moment my friend sortof steps down into something, like a stairway-step down into the ground. From there on, my brain just went into instinct-overdrive, I saw a black cloud explode from the ground, coupled with the sound of massive buzzing. There were no thoughts, I just turned and ran, and I actually remember feeling the wind on my face while hearing the buzzing behind me.
I could hear my friend utter a kind of Daffy Duck-ish "woooo ho ho ho ho!", far away from me. I had headed up the trail, back to the neighborhood, and as soon as I exited the trees, the swarm stopped following me. I couldn't believe, I had outrun a hornet swarm, or "ground wasps" as we call them here.
My friend emerged some minutes later, doing the Peter Griffin-routine, "hissssss, ihhhh, haaaaah, oooohhhh, hissssss!" - he had been stung all over. There were wasps still tangled in his wooly sweatter, stinging him repeatedly. Had he been allergic, that woulda been it for him, death by bug. But, he was fine, so I laaaughed and I laaaughed