Ratio induced creeper syndrome. The result of being in an environment for too long where the ratio of males to females is so unbalanced, the males lose social abilities/tact. They in turn become 'creepers,' particularly when addressing/interacting with/looking at females.
Almost any male engineer you've ever met.
Girl to friend: "That kid who always stares at me from the corner in class just approached me and asked me to LARP tonight. When I said no thanks he just kept standing there and staring...must be a case of RICS."