This is a first for us. My husband has been around GSP's his entire life and has always had one, well four or more. We have always had two in our home and usually they are velcro and the sweetest dogs. None of them have ever tried to nip/bite anyone, but our almost 1 year old tried to with our UPS man that has been around him for the past 6 months at least 2-3 times a week. Do we need to start back at the basics of the course? I want get a head of this and try and correct this behavior, but I want to make sure I am not going to make it worse.