A mature female, about 2", got me on the right shoulder. I was showing one of my friends her walking around on my hand like I had done a hundred times before. This time, she kept moving around the deli cup i put in front of her as she made her way up my arm. When she got to my shirt, I put the deli cup over her because she was a few inches from my neck. I told my friend to get a piece of paper and slide it under the cup, and slide it in behind her. Well what happened was she turned towards the paper as it slid under and she stung at it, went right through the paper and my shirt and BOOM pain. She fell to the floor (luckily she was okay!) It was a pulsing pain, felt it on my whole arm and hand, and basically the right side of my chest (down to my waist), and my neck. It felt very heavy for some reason and fingers and arms were swollen. The spot where she stung me was barely noticeable, just looked like a very small freckle. The thing packs a punch! Symptoms lasted 5 hours. I did not receive medical attention.