One guy had some pretty bad acne/smallpox scars on his face. He was desperate to cure it and was ready to try anything to get rid of those scars. So he went to a shaman/fortune-teller who told him about a very special method. If he could find a cockroach before going to bed, he would just have to put it next to his pillow before sleeping. Sleeping with the cockroach by his face would most surely make his scars go away. So the guy did like he was told.
The next day, he wakes up, looks in the mirror and realizes a lot of his scars are actually gone! But on closer inspection, he sees that the scar holes are not gone, they just have been filled with small cockroach eggs.