Mining the depths of the human psyche.

Today, René Magritte is largely remembered as a Belgian surrealist, but at one time, he was also the owner of a trendy disco that did a multi-million dollar, mostly cash business. For the painting above, he drew on his extreme fear of waking up one morning to find a mob of IRS auditors outside his bedroom window. For that reason, he called it, "I am such an idiot! Why did I brag to the tabloids about the comically large amount of unreported income stashed underneath my mattress?!!! Aaargh!!!"
Eventually, his fears were realized, and he spent the rest of his life in prison.