We adopted a 3 year old standard this week. She is the kind, sweet, extremely calm dog. The previous owner decided to give her up because she was too nervous in a busy house when guests came over and she felt badly for the dog. She is great on a leash and will come to us and loves to be loved and doesn't duck when you go to pat her. However, when you call her, she scooches down and comes to you in a full scooching position, even if she is 30 feet away. When we go to put the leash on her, she does the same thing, but walks fine once on a leash. She is also very nervous going through any doorway, Any advice on giving her confidence would be appreciated!