Ya, I personally wouldn't want a bunch of people milling around in front of my tank unless they were looking at it. If you notice, it takes most fish a while to get used to you before they come out of hiding, that many people in a room I am sure would probably send them back, especially with loud music. That and if it is a drinking party, I would be worried about someone doing something stupid and breaking the tank, so it would result in me being more stressed.