For MIT's 2008 Campus Preview Weekend, hackers placed boxes with clear fronts, chainsaws, and the text 'In Case of Zombie Attack, Break Glass' on the front in the lobbies of MIT's buildings 16 and 46. The selection of Building 46 was a clear reference to the Department of Brain and Cognitive Sciences housed there; zombies traditionally seek brains to eat. These are similar to some of the old fire alarms around campus (you can find one on the second floor of 26) which say "In case of fire, break glass."