one of my shar peis Taz is like that, I put a sign on the gate PLEASE SHUT , so hopefully he can only get as far as my small front garden and then I went to Argos and bought a childs stair gate,very easy to install, put that across the living room door and if there is a knock or someone wants to leave we put the dogs inside the gate and shut it, dogs can still see whats going on but are safe. I too got fed up of running down the street in pursuit and I am a lot older too.
GOOD LUCK ITS WORKS
Dee