Do you think I would paint myself in a corner and throw away the key?

This is not a mix or conflation but rather a combination of two idioms, resulting in a very good malaphor.  The speaker states that she has a habit of mixing expressions and her husband calls her the Norm Crosby of malapropisms.  Actually this one is a malaphor and not a malaprop, so perhaps she is the Norma Crosby of Malaphors?  In any event, she said this one to her husband when he was questioning her decision on a particular case.  She said, “How stupid do you think I am? Do you think I would paint myself in a corner and throw the key away?” That ended the argument because he was laughing so hard.  The malaphor is a combination of “paint oneself in a corner” (get into a difficulty from which one can’t extricate oneself) and “lock someone up door and throw away the key” (incarcerate indefinitely).  Thanks to MaryKathryn for unintentionally uttering this one and sending it in!