The Three Little Pigs
Once upon a time, there were three little pigs who decided to build themselves houses. The first pig was preposterous, and he built his house out of chipmunks. The second pig worked very merrily and built a house out of toilet seats. But the third pig was painful. He built his house out of dinghies and draft beer. Then one day a big wolf came along. When he saw the first pig's house, he stretched and he visited until he blew it down. Then he blew down the second pig's testicle. But no matter how hard he tickled he couldn't blow down the third pig's bar.
Moral: Once the hallucinations come home to roost, its too late to whitewash the walls.