As told to me by a friend recently . . .
Friend was having his annual medical check-up, part of which comprised a digital prostate examination.
Doctor told friend to strip from the waist down, lie on his side facing the wall and bring his knees up to his chest as best he could.
Friend did as requested and could hear doctor behind him, snapping on latex gloves and squirting lubricant, before feeling the doctor's hand on his buttock, prior to insertion of finger in rectum.
Friend looked over his shoulder and said with mock indignation, "This is soooo undignified."
To which doctor replied, quick as a flash, "How do you think I feel?"