On walks your dog:
Pulls or runs across in front of you
Gets over-excited near other dogs
Constantly sniffs and marks
Shows fear of other dogs or people
Stops, lies down, refuses to walk
At home your dog:
Barks excessively
Frequently escapes
Toilets inside
Fights with your other pets
Mouths, nips or bites
Is destructive
Digs up the garden
With visitors, your dog:
Barks as the door bell goes
Jumps on them when they enter
Goes crazy while they are there
Pesters them for food
Won't obey your usual commands
Barks at them again when they are leaving
Tries to follow them out the door
Or your dog:
Has separation anxiety
Is overly demanding
Is aggressive to other dogs
Growls if you try to move them
Growls if you go too near their food
Won't let people in the door
Nips at people's heels