Annex

The Annex is a rabbit hole featured in The Sims 3: University Life. It is also a part of the stadium.

Gameplay description
Sims can attend a handiness class and visiting the annex. They can receive the "Boring Conversation" or "Educated" moodlets: The annex is also used to host a graduation ceremony when a Sim's trimester is finished.

Some players have reported that Sims will not enter the annex and missing graduation, and therefore doesn't receive an extra trait.