The Rawk[35] is a large boulder donated by members of Alpha Phi Omega in 1973 and painted nearly every day by students, who use it as a giant message board. Unofficial rules govern the use of the Rawk, and students know not to use foul language and that messages must be left for at least 24 hours before being painted over. Students know when they can begin to paint over the previous message on The Rawk by the two smaller rocks in front of it; one for the date, and one for the time at which the message was painted.