The funniest "shushing" experience I've had was while watching Jethro Tull at Cropredy a number of years ago. I hadn't realised how silent the audience was in our area of the crowd ,as a particularly wonderful flute solo was being played. A rather merry guy - who had been steadily and very happily drinking all afternoon- was suddenly overcome with emotion and ,with a tear in his eye, yelled,"Ian Anderson for Prime Minister!" As one , about 1000 people looked his way and chorussed very gently...."shhhhh". Wonderful. No malice, but the point was made.

Oh , by the way...as a teacher I never forget I'm talking to adults when I'm performing.Just needed to get that one off my chest.It rankles a bit when comments like that are made(however justified they might be in some cases!)