I don't know if you're quoting me or someone else, but I can tell you I saw him doing that. It was a bit scary. He also yelled many times and, when he was at the stairs, he bit his own arm while shouting.
When I left the place, he was talking to the Faculty's security staff, and he was accompanied by people from a foundation (the one which usually organizes his events here) at all times. They said he slept well and was calm today.