along with aggie ice cream, well-known traditions include the rite of passage of becoming a true aggie, which requires a student to kiss someone who is already a true aggie on top of the block "a." two students may also become true aggies together on homecoming night or on a-day. at one point recently, usu held the title in the guinness book of world records for the most couples kissing at the same place at the same time. nearby the block "a" is the lighted "a" atop the old main tower, which shines white throughout the entire valley, and blue on nights when a varsity sport has picked up a victory, or other special events have occurred on campus.