My Charlotte is 1yr Yellow Lab. She is a great pup. Behaves well and listens well. My problem is when someone else comes to the house. She goes crazy! Mad barking and hair standing up. Once we have her greet the person she stops acting mad but then jumps up on them and wont calm down. She gets so over excited that twice I have had to put her in her kennel because I cant control her at all. Which then defeats the purpose of trying to get her to socialize with other people nicely. Any ideas?