(BBC) – Billed as a 24-hour stint in the lift, in reality the Transformers star is actually allowed out to answer the call of nature.
He also emerged to speak at the Oxford Union during the evening.
The Hollywood star began his lift marathon at 09:00 GMT along with friends and art collaborators Nastja Rönkkö and Luke Turner.
After the debate at the Oxford Union, the trio were due to continue occupying the lift in Gloucester Green until 09:00 on Saturday.
The event, called #ELEVATE, is being streamed on YouTube.
7 Minutes. Thats how long I just stared at an elevator door while people talked.
I am no art connoisseur by any stretch of the imagination, but honestly what the heck is Shia LaBeouf actually doing these days.
More importantly, why do I keep looking at it.
The door does open from time to time.