A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. 
He attacked everything in life with a mix of extraordinary genius and naive incompetence, and it was often difficult to tell which was which.
He felt that his whole life was some kind of dream and he sometimes wondered whose it was and whether they were enjoying it.
He was a dreamer, a thinker, a speculative philosopher... or, as his wife would have it, an idiot.
I don't believe it. Prove it to me and I still won't believe it.
I may not have gone where I intended to go, but I think I have ended up where I needed to be.