The above quote is from Glenn Normile (Class of 1972). Read the full memory below:
In the 1970s, there were considerable problems with exhibitionists outside the ground level carrels on all sides of the Rock. Students who were studying were disturbed by men displaying their genitals and masturbating, only inches away but on the exterior side of the glass. There were usually delays in making reports of this behavior to campus police and security, since mobile phones did not yet exist. Complainants had to walk upstairs to use a Library phone to call about the problem, giving the suspect ample time to leave the area. Quite often when there were sufficient personnel on duty, surveillance the Rock exterior would be done, but arrests were few and far between. Finally, a creative solution was enacted. The glass in these windows was replaced. Students inside could see out, but those outside could no longer see people studying inside, so the primary “thrill” for the exhibitionists was removed. Students could still see the “flashers” and had sufficient time to make a report, so arrests grew in number until the problems became very rare.