Thanks to Phil Dourado for this question:
What do the elements of this list have in common?
Anesthesia
Cellophane
cholesterol lowering drugs
cornflakes
dynamite
the ice cream soda
Ivory soap
artificial sweeteners
nylon
Penicillin
photography
Rayon
PVC
Smallpox vaccine
stainless steel
Teflon
Answer: all discovered by accident. Hmm. I wonder how many organisations that claim to want innovation have thought about how they react to accidents?