OK so this is tongue-in-cheek.  But actually during my stay in the laboratory of Leland Clark, Jr, who was pioneering the blood substitute thing using perfluorochemicals I must have been slightly overcome with the topic, as i sketched out all the characteristics of an emulsion in this “face” montage, in which you can see some familiar icons, including the face of Leland Clark, Jr. (upper right with the mutton chops), and some lab techs, and animal room techs, and even postdocs and the iconic Mr. Clean and an experimental monkey (lower left).  Forgive–for posting this drawing some 45 years after it was made.