Hi all, My family and I have recently rehomed a lovely 14 week old border collie puppy. She's settled in brilliant but has a biting issue. She seems to only bite on individual in the family (oldest son) whether it be hands or clothing and ankles when he moves etc. So.e of the bites are breaking the skin and we can't seem to limit it or calm her bite force down. Does anyone have any suggestions/advice on what to try?. Thanks.