There's a fine line between art and life, and vice-versa.
When reality jumped out of willingly suspended disbelief into the realms of all flesh and slit the throats of actors in a school production of Stephen Sondheim's musical Sweeney Todd last week it reminded me of Brian Patten's poem The Projectionist's Nightmare - about a bird finding its way into a cinema, flying down the beam and smashing into a sunset garden scene in which two people were being nice to each other.
Real blood, feathers and intestines slithered down the likeness of a tree. "This is no good," screamed the audience. "This is not what we came to see."
Quite apart from the wonderful metaphor about escapism, you can just see the imminent collapse of the entire enterprise. Grand old cinema showing cracks fails building inspection, closes down.
Likewise school drama - henceforth all plays requiring prop weapons will be off the curriculum (there goes most of Shakespeare), health and safety inspections will raise the cost/difficulty of mounting productions whereupon drama departments will join school swimming pools drowning in the too hard basket.