You see a dog growls when it’s angry, and wags its tail when it’s pleased. Now I growl when I’m pleased and wag my tail when I’m angry. Therefore I’m mad.

The Cheshire Cat to Alice, in Lewis Carroll, The Annotated Alice

Some day I’ll join him right there,

but now he’s gone with his shaggy coat,

his bad manners and his cold nose.

Pablo Neruda, “A Dog Has Died”