If you read what he said he wasn't saying "avoid relationships with your colleagues" he said "Let me tell you about my trouble with girls. Three things happen when they are in the lab; you fall in love with them, they fall in love with you and when you criticise them, they cry." So, women - actually girls, not even women - should be shifted out. Not that restraint should be shown, or stop making anyone cry, girls should be cordoned off. It's not just clumsy, he's denying his own actions contribute to the scenario he describes.