Once I climbed into a mountain lion's cage and she bounded at me and put her paw on my face, but she kept her claws withdrawn.
There are people all over the world who like to write fan letters in the voice of their pet: 'Hello, my name is Fifi and I'm a labrador and I think you're great. Paw paw!'
Too much free time is certainly a monkey's paw in disguise. Most people can't handle a structureless life.
The fountain of youth is like the monkey's paw in the W. W. Jacobs story. It never ends well.
When I appear in public people expect me to neigh, grind my teeth, paw the ground and swish my tail - none of which is easy.