Pie or Crumble

This is totaly random, but not really actually. . .I heard from a chemist/biologist that if you combine rhubarb and pineapple it turns toxic poison, that can make you very very ill or kill you.

Fortunately nothing more than an old wives tale and utter gobshite. I have had both together and the only ill effect that I suffered was an overwhelming need for more. Fortunately sated by eating some more.