I was stung by a bald-faced hornet on the top of my foot almost ten years ago. Excruciating pain, my foot swelled so that I couldn’t fit it in a shoe and it turned blue with an infection that required 6 weeks of antibiotics. Vicious little creatures.
https://en.wikipedia.org/wiki/Bald-faced_hornet
It followed me into the house, which is supposedly unusual.
Yikes. Fortunately their range does not include where I live. Expect even I’d feel that sting...