I once went on a date with a guy who said he found the fact that I was a nurse really sexy because he loved that I'd have "the capacity to take care of him". That was our last date.
And let me say, when I come home stumbling tired, smelling like breast milk and ampicillin and IntraLipids, with my makeup smudged and ponytail frazzled, in wrinkled scrubs with some unidentified stain on the left leg (always the left!) even my normally nuclear sex appeal suffers a bit.