In 2004, healthcare professionals warned against overindulgence in Pontefract cake after a 56-year-old woman was admitted to hospital following an overdose. The woman consumed about 200 grams (7.1 oz) daily, leading to dangerously low potassium levels and subsequent muscle failure.
If you're reading this in the UK and happen to have rats in the garden, try leaving some out for them. It's something even rats won't go near. Except possibly Scandinavian rats when the alternative is salmiak.
According to that universal source of all knowledge Wikipedia, "The word [cake] itself is of Germanic origin, from the Germanic 'kakâ' (cook)". Who says Germans don't have a sense of humor when they've got the Brits to name their oldest sweet "Pontefract kaka".
Have you ever tried this stuff called "root beer" that Americans all seem to be into?
Sugary-sticky medicine flavoured stuff made from a poisonous plant. It's the sort of thing I'd expect from a country with absolutely no food culture like the US.