Studies have shown that many of us are scared of things that are unlikely to kill us, whilst we happily engage in behaviours that might. Some people won’t swim in the sea in case they’re attacked by a shark, whereas others will text whilst they’re driving without a second thought. And yet the lifetime risk of dying from a shark attack is over one in three million, while every 17 minutes someone is killed or seriously injured on UK roads. Why do we feel safer in a car?