Of dogs and pigs and sheep

The following idiomatic expressions and sayings can all be found in Pink Floyd's Animals Songbook. One at the top of each page, before the music scores. They're all about the (Orwellian) trilogy of dogs and pigs and sheep. The angry lyrics of the album are definitely worth the reading too.

Pig tails.
Piggy in the middle.
Doggy bag.
Piggy bank.
If pigs could fly.
Puppy fat.
Like a lamb to the slaughter.
Tail wagging the dog.
Tough as mutton.
Save your bacon.
Doggone.
Hamming it up.
Let him off the leash.
On the lam.
Meek as a lamb.
Barking up the wrong tree.
Dog in a manger.
Mutton dressed as lamb.
They follow like sheep.
Top dog.
Male chauvinist pig.
Dogfish.
Didn't have a dog's chance.
Counting sheep.
His bark is worse than his bite.
Don't pull the wool over my eyes.
Hound to death.
A wolf in sheep's clothing.
Dog eats dog.
Sick as a dog.
Pork pie hat.
Might as well be hung for a sheep as a lamb.
Sonofa bitch.
Battersea dog's home.
Hogging the action.
Dogger bank.
Fascist pig.
Dog collar.
In the dog house.
The dog star.
Hog wash.
Sheepish.
Gone to the dogs.
The dog watch.
Let sleeping dogs lie.
Pigmy tribe.
Dyed in the wool.
Man bites dog.
To dog someone's footsteps.
Dogpaddle.
Isle of dogs.
Raining cats and dogs.
Dog spells God backwards.
Radio ham.
Government watchdog.
A dog's life.
Houndstooth check.
Every dog has his day.
General dogs body.
Hair of the dog.
Never look a gift dog in the mouth.
With his tail between his legs.
Give a dog a bone.
Dog eared.
Give a dog a bad name.
Puppy love.
Dog tired.
Pig in a poke.
Pig headed.
You can't teach an old dog new tricks.
Hot dog.
A sheep dog.
Road hog.
Pig iron.
A dog is a man's best friend.
Making sheep's eyes.
You can't make a silk purse out of a sow's ear.
Pig ignorant.
Going the whole hog.
Sausage roll.
Making a pig of yourself.
Casting pearls before swine.
Ham fisted.
Black sheep of the family.
Dog ends.
All animals are equal - but some are more equal than others.