POINTERS AND METAPHORS

What's the best way to describe pointers using metaphors?

A friend of mine told me once:
"A woman is a pointer, because she holds the number of the man's bank account."

Any other metaphors?

What type is bar? int [1]
What type is bar[0]? int
What type is *bar? int
What type is &bar[0]? int*
What type is &a? char*
What type is b? char*
What are the implications of this? you are a daft cunt

int[1] isn't a type, but int[] is