Dunlop was fond of snuff, a tobacco product. Like any other consumable, Dunlop enjoyed snuff in large quantities. The box in which he carried his snuff, he called The Coffin. Crossing the Canada/US border, a US inspector found it doubtful that the amount of snuff carried with him was just for personal use. Dunlop is said to have tossed a handful of snuff in the air, then snorting it as it fell around him. He said: "There, that's what I want it for; that's the way I use it".