My family lives a long ways away, but when they want to visit, I already told them to bring their own laptops because there is private stuff on mine that I don't want anyone seeing.
When they visit, we will see if there are any snoopers. But, just to be safe, I'm going to hide the keyboard and mouse, taking them out only when I want to use it.
I made that be a condition of their visit. My computer is private and not to be used by anyone.
I have a plug in plug thingy from my cell phone provider that makes any computer have Internet anywhere.
They can plug it into their own computers and get Internet that way.
They are just going to have to respect my privacy. It's that simple.