Yes, that is one of the easily understandable and foreseeable difficulties and/or perils of hosting your swanky shindig on the college campus, in a classroom where it is always quite possible that any student wandering nearby, not knowing that anything special was going on there, may suddenly make a righ tor left turn and unexpectedly encounter some persons gathered, all dressed up in fancy clothes for who knows what occasion. I really never understood what that was about.