Staying in a hotel room and not going outside... But also telling other people that you are someone else, as he mentions doing. I can understand the phase, a kind of complete isolation. Not sure it should be instead, rather that in addition to, other kinds of activities.

I can relate to room service being annoying. Though leaving "do not disturb" on the door usually works, even for 5-6 days in a row. They do not knock when they see that. Just pester you at the corridors if you pass by.