I've only had one "adults-only" night at WDW

and a friend and I did what was then called the "monorail drink-a-thon". We actually planned out all the resorts we wanted to see, started at the Poly for a LapuLapu (and to drop the kids off at the Neverland Club) and worked our way to quite a few bars where we had cocktails and appetizers at each one. It was a really fun night out, we got to try the food at 5 or 6 places and toured the other resorts -- so much fun!