Lore Segal

"Tell me a Mitzi," said Martha.
"Later I will," said her mother. "Now I've got a headache."
In a little while Martha asked her mother,"Mommy, now is it later?"
"No," said her mother. "It's still now."
In a little while Martha asked her mother if she had a headache.
"No," said her mother,"wshy ?"
"Tell me a Mitzi," said Martha

Once upon a time (said her mother)...