Sorry I am new to VR stuff. How do I make sure nobody joins maps I visit in VR Chat? I love exploring around, sometimes watching stuff by myself on cinema servers, but I am extremely asocial (probably autistic but then again I function normally irl) and sometimes people join the same public map I am on and approach me. Whenever it happens I rush to kill the power to the entire PC so it shuts down. Teleporting away in game is too slow. 

Tl;dr I want to play but I am scared of people, how to avoid?