1. Puppy (Less than 1 year old)
2. 1
3. Have behavior problems (e.g. too aggressive, overly protective etc.)
4. Obedience,Toilet training,Learn not to bark,Learn not to be aggressive,Learn not to bite
5. Any time
Description: 1. 突然細力咬人
不能定點如廁,完事後不停玩排泄物
2. 多久也不怕