One day, when he is, somewhere back in act two, one day he is visiting the alchemist he catches sight of this woman, Doll, quite obviously a prostitute, probably an a an absolutely  erm  catches sight of her and says, I must quickly think up some reason why this woman is, is in the house  cos  Sir Epicure Manhom thinks the alchemist is a pure, homely  er priest-like creature yet in fact, he's running a whorehouse.