You guys should read "The other end of the Leash" and see what YOUR actions "say" to a dog. Snout grabs, or any type of playing, isn't just playing to a dog, it is COMMUNICATION. Each thing you do has a meaning to a dog even if YOU do not realize it.
http://www.amazon.com/Other-End-Leash-Patricia-McConnell/dp/0345446798
http://www.amazon.com/Other-End-Leash-Patricia-McConnell/dp/0345446798
