with an older dog an electric collar does the trick!
Why does everybody think the electric collar is the magic training aid? Its usually the lazy mans excuse to avoid putting time in, and before anyone says anything i have had electric collars in my training bag since the 90's, they are invalule in certain situations but require experience and timing, if you dont have both you will make the problem ten times worse............
Dont be silly, electric collars solve everything.
Baking in kennel...zap
shitting in kennel...zap
Not coming back...zap
Chasing stock...zap
Not eat