Assembly Lockdown
Picture this: you're in your room somewhere in the River when suddenly, the blitz you've been waiting for pops up on JoshGreenMail(TM). The "study session" cue you've been waiting for all evening has arrived, and instantly you're off to Topliff to meet with your ... lab partner, we'll say. You stride proudly across the Green and pause for a moment in front of Topliff's front door -- it's locked.