Recently there have been a number of reports around the data loss bug that, while rare, can cause a Snow Leopard user's home folder to be deleted upon logging into and out of the guest account. These reports may have people concerned about their data in OS X, but in reality it is a very rare and easy bug to avoid, and also it is much easier to inadvertently overwrite a file or accidentally trash one than be caught by this bug and other behaviors that may lead to data loss.