Winnie is almost 5 months old and is starting to stare a me blankly on certain commands that I know she knows very well. For instance if I ask her to go on her bed she normally does it no problem but sometimes lately I just get a blank stare. She totally ignores what I am saying. In steps my husband with his firm deep voice and tells her to get on her bed and she goes immediately!!! Is this part of adolescent behaviour? When I go back to training she is great but when the mood takes her she won't do anything unless my husband steps in.