Consequence

watercolor on kilimanjaro paper

"[The cake-crumbs] were inside his skin and they tickled.

So he went home, 

very angry indeed and horribly scratchy;

and from that day to this 

every rhinoceros has great folds in his skin

and a very bad temper,

all on account of the cake crumbs inside."

Rudyard Kipling - How the Rhinoceros got his Skin