I have a four year old collie cross (bearded/border). In general well behaved in the house. My problem is that whilst she loves to be out in the garden, she will not put one foot back into the house until I physically go to the back door. I suppose it maybe does not sound like too much of a problem, however we have been having some really hot weather and on countless occasions when I have gone to the back door she has obviously been standing there for some time in the burning sun. She has only started doing this this summer and I have been used to leaving the door open to let her wander in and out in the past. I don't need to do anything when I walk to the door. The door is already open and there are no barriers stopping her just walking in. The issue is that once she gets to the door she just will not move, either into the house or wander away to shade, she just stands and waits to see me before she will come in. And she would wait forever!!! I just cannot put my finger on why she is doing it. As soon as she sees me the ears go up, the tail wags and she prances in without a care in the world!!