@lololulu19 Maybe some twink with a huge cock will come up behind you, look at the screen, start rubbing himself....
Indeed, people can often be disrespectful of others' privacy. A few times in a situation like this I have lowered the laptop screen and said, in a loud voice, "do you like what you're seeing on my computer? Can I look at yours?" This can cause well-deserved embarrassment to the eavesdropper.
Sitting in a corner facing into the room helps, although that might not always be an option. I now have a film cover that goes over my laptop screen that prevents people from seeing what's on the screen, and it's been helpful...search for "laptop privacy screen" on Amazon or the like. They're about $20 US as I recall.
Sorry to hear about your fire. I hope things get back to normal for you soon.