Pugh vs London Brighton and South Coast Railway 1896(?) being such a case. If I recall it was judged that you didn't need to suffer actual physical injury to be considered as having suffered an accident?
Then there was the famous snail in the ginger beer bottle.....I'm sure you know that one!
No memory trick - just 5 or 6 cases remembered from many years ago in case I should ever need to refer to them!