By making a classy exit, naturally...
"Forgive me and forget me as soon as possible. I am leaving you for ever. Do not look for me, it is useless. I have become a witch from the grief and calamities that have struck me. It's time for me to go. Farewell."
Margarita hung up, and here something in the next room hobbled woodenly and started beating on the door. Margarita flung it open and a sweeping broom, bristles up, flew dancing into the bedroom. It drummed on the floor with its end, kicking and straining towards the window. Margarita squealed with delight and jumped astride the broom. Only now did the thought flash in the rider that amidst all this fracas she had forgotten to get dressed. She galloped over to the bed and grabbed the first thing she found, some light blue shift. Waving it like a banner, she flew out the window."
Mikhail Bulgakov, The Master and Margarita