How Many Drinks does it Take

A guy goes to a single's bar to find a bedmate for the nite. He sits at the bar and has a couple of drinks while surveying his possibilities.
He finally decides on a cute redhead that seems to be having a great time dancing with different guys. So he has another quick drink while waiting for the music to stop, making sure he is positioned to ask her for the next dance.
He gets it, but after gyrating madly on the dance floor with the gal, after the dance he feels a bit woozy from the drinks he'd had.
"How many drinks does it take to get you dizzy?" he asks the perky redhead.
"Oh, four or five." she answers, adding "And don't call me Dizzy."