Our 4-year-old staffie cross is becoming very naughty about running off when we take her for a walk in the woods - sometimes not coming back for up to 20 minutes.
We took her to obedience classes a few years ago, and follow their advice - giving her treats when she comes back when she's called etc - but it seems once she's decided to go off for a run (chasing squirrels maybe), there's no attracting her back.
We tend to not give her much attention after she's had one of her mad 15 minutes, just put her on the lead and bring her home...but is that the right thing?
How do we re-train her to come back when called the first time?