A few years ago I was walking with my 4 year old son in a remote area of the Smoky Mountains when behind walking were a group of teenagers.  Fortunately for us they were some good kids, but I remember the feeling of being totally defenseless except for a stick or stone that would have taken care of one of them.  From then on I have sought to have a non-lethal weapon that would give me confidence in a situation like that.  These self defense pepper spray devices give you that confidence.  Please make sure before ordering self defense spray that they are "legal" in your area of the country.