All the ladies: Meryl, E.E., and Eva will say something if you stare too long at them in first person mode. Kojima put an insane level of detail into these games when it came to screwing around. If you have Raiden walk into the ladies restroom and go into a stall while down on one knee in front of the toilet, you can call the Colonel and Rosemary who chastise you for being perverted.