I moved to Sweden before Cadbury’s was sold, I wasn’t aware that Cadburys had been sold when I came back to the UK for a visit.
I genuinely thought that the chocolate had been “re-melted”. You know that waxy taste when chocolate has been out in the sun too much and hardened again and that’s happened a few times?
So, I chalked it up to a bad batch or that the store had stored it incorrectly.
To my horror the same was true of the chocolate in the airport when I was going home.
So; it’s not a placebo; I didn’t know, I only know because I complained to my Mum and she explained what happened later.