Millions of perfectly rational people are terrified of spiders, according to London's famous Zoo. No matter how much they try to calm themselves the response remains the same: sweating, nausea, panic, rapid, heartbeat and worse. So the Zoo offers a "Friendly Spider Programme" using a combination of cognitive behavioural therapy and hypnotherapy. They
have achieved an 80% success rate in over 2000 people who have taken the course.