I went and saw one of Canada's most reliable roots acts of the last 20 years the other night, The Skydiggers. It was a monumental night, not because the band was great, which they were... but because lead singer Andy Maize had to stop mid-song early on in the set, to sneeze. Now, I've been going to see live music in many different venues for over 30 years now, and I Can't recall ever seeing a performer sneeze on stage before. Snot rockets? At a Springsteen show they're more common than an encore, but a sneeze? A pretty rare occurrence, I'm thinkin'...
I don't remember ever seeing a performer sneeze, but I did witness this: A few years back when Dolly Parton played Merlefest she'd started a song, sang part of the first verse, then abruptly quit singing. She had a funny look on her face as she stopped the backing musicians then chirped, "I swallowed a bug!" After a couple of minutes of coughing and some water (and some carrying on about swallowing a bug!) she started the song over and finished it in fine style.
Yes, oddly enough, swallowing bugs is much more common than sneezing. I myself witnessed Kate Rusby swallow a moth, and a friend saw Joan Baez freak out a few years ago over a bug swallow incident. Hmmm... all women... Maybe guys just like eating bugs and don't care...