Yup had it happen too. After a ride, I put the bke away, went into the house. I felt a tickle on my chest. I thought it was just sweat running down my skin, so I rubbed it. Felt the tickle again, not thinking any thing of it, I rubbed it again. Felt it again, rubbed it again, WHAM. Stung dead center on the chest. Squashed it aginst my skin.
Then there was the time I had one walking on the inside of my glasses...