Rollout effectiveness

Jan 23, 2009

Several "educators" teach rollout technique to "repair" or "fix" a selling PUT position that is or about to become ITM.
Mi goal is not to be assigned the underlaying. I don´t understand how the rollput helps to prevent assignment when the the PUT is ITM. As we know the buyer of the PUT that buys for hedging can issue an excercise at ANY moment on or before expiration. Rollout just extends the expiration but do nothing to fix the fact that the PUT is ITM and can be excersised at any time.
I´m missing something here?