My wife thought:
Men leave sex smell when masturbating, she was shocked that is not true.
She thought a flaccid penis is as sensitive as testicles, like if a penis was squeezed it would be intensely painful. She cannot believe a flaccid penis is almost like rubber and manipulation other than cuts or stabs is not painful. She freaks out if I twist around my flaccid penis and thinks it is the same as getting kicked in the testicles.