Willow seems to have different behaviors depending on who she's interacting with. It's like she's assigned roles to the people she deals with the most. There's no doubt she loves everyone in the family but she does react differently to each of us. For my wife, she loves to play with her, whether it's tug of war or fetch, she's enthusiastic. However, Willow doesn't really initiate any cuddles with her and may even back away if my wife tries to pet her. For me, she'll play games but nothing competitive, no tug of war but she will play fetch and chase games. She will crawl up into my lap and cuddle when she wants contact. This morning when my wife opened Willow's crate to take her out, she ducked under my wife's hands and leaped up on the bed to snuggle in against me. She didn't resist when my wife picked her up to go though. For my youngest son, who's currently living with us as he finishes off his post-grad studies, she's somewhere in-between. She doesn't seek out his petting but will allow it. They play lots of rough and tumble games. So, is this a normal sort of division? Do other Shelties categorize their people?