We're not talking about eating entire dentists here, just getting a taste. When they start prodding around in the back of your mouth it can trigger a gag reflex (at least, that's what I'm claiming, not mere frustration at being rendered incommunicado and talked at), and you bite through the latex glove (which doesn't taste of chicken) and into the underlying finger (which, I suppose, tastes a bit like raw chicken). You are then expected to "rinse and spit", rather than finishing the meal – basically a good plan, as cannibalism is an excellent disease vector for things like mad cow disease (spongiform encephalopathic dentistry prions, anyone?)
I remember when, as a child, I had my little printing press with its type, and the plate you inked so the rollers could carry it to the actual box of letters (a delightfully messy enterprise). The ink was about the consistency of tomato ketchup, smelt of linseed oil, tasted like paint, and took a considerable time to dry, which involved each and every copy being hung by a clothes peg from a string as it came off the press. I suspect (although I can't actually remember) that white spirit or turpentine was used to dilute and clean. Vinyl pigments should have no flavour at all (= biologically inactive), but they want the pages to be dry fast, practically instantaneously on leaving the rollers, so the solvent will be highly volatile, and it's this that gives the characteristic smell of fresh newsprint, and doubtless the flavour, too, although plasticisers might be important spices. Now, I know what trike (trichlorethelene) tastes like, as I used to apply a solution of PIB (polyisobutelene) in it to loudspeaker surrounds:- sharp, and unpleasant but not particularly metallic or sanguin. But I have never tried swigging back ether (which would seem a bad choice, anyway, due to its inflammability, but is on the list of solvents used in printing ink) or any of the long chain alcohols (ethanol, though…), and when we get to things like methoxypropanol acetate, my alchemical knowledge waves a white flag (come back Firmeniche, {nearly} all is forgiven).
