Back in the day Tara would leap into my car through a half open window....now she walks the long way around to avoid the front steps. She used to alert me to people walking past the house, yesterday a delivery man knocked on my door, and she didn't show any interest at all. This morning at 3.50am the neighbourhood dogs started their usual barking, and she joined in with a few grunts and snorts, pacing up and down....so I let her outside. When I called her to come inside again I'm not sure if she didn't hear me, or decided to ignore me (this is a dog with perfect recall). She's taken to sleeping on my chair, instead of her own, she doesn't care as much when the cats eat her food. Just in recent weeks she seems to have started a mental decline. Maybe I'm reading too much into it.....but.....I'm worried it's the start of the end. She is 12, and a large(ish) dog at about 30kgs, so I realise she's had a good innings...I would like to know what to expect in our future. My previous dog lived to a similar age, but she she just died suddenly.