I had to look up 'duck pics' DMcG! (Urban dictionary)

When I was a student at Edinburgh University, I took a summer job as a temporary auxiliary nurse at the Royal Infirmary. I was eighteen, and
I'd never ever seen a naked man (in those days we were rather innocent and naive). I was sent to many wards for a week at a time, to fill in for nurses on holiday leave.
My very first assignment was a male geriatric ward. I had to bathe many elderly, infirm and often senile blokes, and a very efficient Sister gave me instructions about their...er...bits.
I'll never forget her firm order: "Retract the foreskin nurse! Retract the foreskin!"