Thanks for the helpful hints! Sadie is very "nippy", and my son tried this method of laying her over on her back yesterday - it worked for him right away! I"ll try to get my daughter to do this too - which could be interesting since she's a bit "scared" to be bitten at , and Sadie knows it! This puppy has more personality than any pet I've ever owned .... she's definitely a little character and we're all smitten !