The Theory of Cross-Over Hour:
The Frisc is most crowded between 10 and 11:30 p.m. every weekday night. Known as "cross-over hour," this is the time of confluence between different work schedules. Half the Frisc users come at about 7 or 8 p.m. and stay until 11 or so. The other half arrive around 10, either for a quick visit and are gone by 11:30, or stay for the long haul. Regardless of visitor motive, population explodes during cross-over hour, resulting in a scarcity of open computers, an increase in the likelihood of running into friends (or people one would rather not see) and an exponential jump in volume level. 50 decibels my ass.