I was lucky the first time I played FO I had an experienced player to coach me all the way to vault 15 (right to the 3rd level), so I knew the chip wasn't there once the prompt came up.
Unfortunately for me I later somehow STILL managed to find myself watching a movie of my char being dipped, my vault being invaded, and the overseer being pummeled to death by multiple muties. Very diquieting to say the least.
Okay the part about the overseer gettting pummeled wasn't so bad.