I Just got my new German shephard puppy From the SPCA she is 3 months old. She use her potty pads pretty well, But thats not my problem, I know puppys bit & bark alot but I want to get her biting and barking under control before she gets bigger. She bites everyone really hard and I tried what the spca said do ( said NO or HEY in a firm voice, walk away) I want to take her to petsmart for "puppy training" but I dont want to waste a $100 bucks and she keeps biting. I havent tried crate training yett, too scared she will bark to much I also moved into a 2nd floor apt and have to keep her barking to a min. so When I have to leave I just let her run around the house and sometime I come home to a mess. Is it too late to start crate training? And what about the biting? please Help!!!!