Cold readers may also use information obtained through other means. When this is done it’s technically a “hot reading.” The most infamous example of this is the faith healer Peter Popoff. He would have his targets fill out “prayer cards” with personal information, including what health issue they wanted healed. He was caught by James Randi (a famous magician and skeptic who uses his knowledge of magic to investigate fraud) having his wife feed him this information through a radio earpiece while pretending to be inspired by angels.