Self-inflicted doom!

Something else to panic about! If you don’t take your shoes off at the front door, a gang of experts reckons, you track millions of particles containing stuff like pesticides into your home.
    Combinations of these pesticides cause cancers and all sort of other nasty stuff. As a result, you’re doomed.
    Worse, cats and dogs also bring in particles, which means that their shoes need to be removed at the door and they need to be shampoo’d before admission.