Guys have this weird tendency to make small talk when someone they know walks into the men's room. In our experience, these discussions, always about sports or the weather, aim at somehow making a situation less awkward. These convos tend to have the opposite effect. Spare the women your point of view on Tom Brady's in-game mechanics or your surprise that it is colder than expected today. In a unisex bathroom, it is all about the business at hand.