yep...he alerting you...he doing his job..what you need is to have some self cues working for you....when she comes in are you usually asleep or reading or watching tv etc?
Yep our Tobes does this too, Alex manages a bar so not back in until 1 at the earliest most nights and I'm in bed, he always barks when Alex gets to the door. I have spoken to my neighbours before they mentioned it and they all say they don't really hear it which is a relief. Wouldn't want to try to stop him as it was useful when those blokes knocked me out of bed looking for their friend's house and my fearsome pupper scared them away!