While visiting someone else's office, I took out a random volume of a German commentary on the law of obligations (Schuldrecht) and found this sentence (my translation):
'Apothecaries and druggists are subject to a special duty of care when giving poisons and explosives to children.'
You can say that again! The citation for this actual quotation is the book Dauner-Lieb/Langen, BGB Schuldrecht, p. 4619 (!). The footnote -- footnote 2396! -- cites RGZ 152, 325. Law nerds, look it up.