Not aviation related except that ex-RAF servicemen in Shetland might have seen this inscription on an Eshaness tombstone:
"Donald Robertson, born 14th January 1785. Died 14th June aged 63 years. He was a peaceable, quiet man, and to all appearances a sincere Christian. His death was much regretted which was caused by the stupidity of Laurence Tulloch of Clothister (Sullom) who sold him nitre instead of Epson Salts by which he was killed in the space of five hours after taking a dose of it."
The long finger of shame will be pointing at poor Laurence for centuries to come.