1. Most people do not have the experience to do grip work without causing conflict and confusion in their dogs - and developing incorrect behaviors/grips as a result - there are some very experienced, knowledgeable people who ARE able to do this, but very few! I believe Vandal and Cliff have both made statements about this.
2. Depends on the dog and the decoy....proper behavior and nerves will allow the dog to react appropriately to the decoy as a threat or as a neutral person in a social environment.
Hexe Sch2, Komet & Kougar IPO1, Kira HGH, SG Bengal, Lynx v Wolfstraum ~ Ziberia IPO1 ~ ATB Basha, Kougar & Kyra, Fenja, Sch3s, Cito, Sch2, DangerRH, Csabre & Alice Sch1s ~Kelsey