I have, for some years now, maintained that Hershey's Chocolate tastes like vomit. I'm am most pleased that my proposition is being validated by this experiment.
I too was stuck in a field in Somerset so, assuming it's not too late, I'll pop you a PM too. I would ask for something other than Hershey's though, owing to it's aforementioned likeness to sick :)
As most people now seem adverse to it, if there's any left - and providing no-one else wants it who's not had any, could you send over a milk chocolate Hershey's bar? Clare's wanting to see what this sick/sour milk business is all about.