A fundamental image in the Belgian psyche (ages 7 to 77).  
And certainly not unconnected with the fanatical obstinacy which led me, despite numerous technical and cultural problems, to want to produce small "mushroom pouffes" for our Christmas shop windows.  
In Morocco, where our terracotta workshop is located, the mushroom hardly features at all, and then only in cans.  
"Fly agaric" does not even grow there, and the first trials were white with red spots - which is absolute sacrilege for all Belgians, not just micologists.