I've had a few.
Like the time when I was selling homemade candies at the farmer's market and accidentally drooled while pointing out my wares to a potential customer, saying, "And here is the fudge." (I really like my own fudge)
No, they didn't notice. They were busy looking at the fffuudge. And, no, I didn't drool on any of the candy.
Then there was the time I fell into the refrigerated egg case at the grocery store.
Yes. People noticed that one.
Please don't ask why these things have recently come to mind.