Generally it is the results from addiction, initiated with 'that first crayon', the watercolor set your aunt got you for your fourth birthday, nurturing of the nasty habit from Kindergarten on. Stop and think about it. Did cave men, I mean other than the French, ever paint stuff. NO! The natural state of man is to NOT paint things. Some corrupted individual thought it up, all on his own, and began the degradation of humankind. Let's just call him 'Lenny' and blame it all on him.
How did the exploding cigar come to be?