It is true that the danger is only proportional to the pressure under the right foot. However I don't know too many people that can jump on a track and drive at 80%.
By the way for those who might be interested in a cheap, extremely fun, entry level motorsport event. There will be a bitumen khanacross at Willowbank on 25/8 and again on 17/11. These are perfect for the zeds. If you aren't familiar with Khanacross just Youtube it. Its very similar to autocross in the USA.