I have had haggis since, but couldn't tell you if it was a proper one, or if it made me brave.

I thought this could be the secret origin of something for me, but maybe 'haggis' came up in these comics more often than you'd guess: from 1990, Donald Duck #278, featuring "Mystery of the Loch" Story and art by Carl Barks. Reprinted from Walt Disney's Comics and Stories #v20#9 (237) from 1960.

After saving up 500 box tops of "Icky Qwickies" brand cereal--man, I already know you guys are gonna have a field day with that name; it seems like something some ad guy would be pleased as punch to come up with in the 50's, then in the late 80's they have to change the name to "Bran Skrotes" or something. Actually, they don't call it 'cereal,' just "the dynamic breakfast food," it could be a suppository for all we know--where were we? Huey, Dewie, and Louis cash their box tops in at the supermarket, for a choice of prizes. Hell, I eat a lot of cereal, and I don't think the box tops are even recyclable nowadays; we need to bring back those contests and promos and crap. Given a choice of premium items, the boys pick an underwater camera; unfortunately they do so just as Uncle Donald is reading about great wonders of the world that had never been photographed. Such as, the Loch Ness monster! Despite being trundled off to Scotland in record time, getting there before they even realize where they were going, the boys are skeptical.

Diving into the dark Scottish loch (Maybe this one? I don't know.) Donald discovers...a ton of other divers with the same get-rich-quick dream. Slightly daunted, Donald figures Nessie hides in caves, and if he could clear out the divers, the beast might appear. Rigging a bunch of life rings together, Donald inflates them all in the midst of the divers, surprising and scattering them. But, his plan works too well, as Donald then gets scared off himself by the Loch Ness monster. Trying to help him recoup some of his losses here, the boys look for a medicine to make Donald brave--and in Scotland, that's called haggis! Either inspired to courage by eating it, or no longer fearing death after eating it, Donald tries again for a picture, noting he sinks like a stone after a bite of haggis. Unfortunately, in short order Donald gets eaten by Nessie; and the boys have to sacrifice their remaining haggis to fish him out. Worse, his story is believed, if not his pictures.

Somehow as a small child I learned the word 'haggis' from a comic, and then asked for it repeatedly at chain restaurants. Would I have eaten it if I'd got it? OK, probably not. But I maybe didn't even learn it from this one, unless I had stumbled across the original comic: there was a digest reprinting in 1969, which didn't seem familiar; but the Western/Gold Key reprint was 1979: I would've been too old then to expect a restaurant to have it. Probably. Still, maybe it wasn't from this story. It may turn up yet!