Cyberstalker
My first roommates invaded my privacy by stealth installing screen viewer software on my desktop and cyberstalking me.
They would do stuff like ban my MAC address from the router (which belonged to me), type while I was trying to do homework assignments on my computer, harass me by typing expletives, putting a hard drive in my computer and cloning my main drive onto it, and out me to other roommates and online friends to a certain fandom I was part of at the time.
I genuinely believed I was being targeted by an online hacker. I was just a naive, sheltered child with social anxiety. It wasn’t until the only decent roommate I had opened up to me and told me what was going on.
There were other things, like threats of ganging up on me, and pranks like saran wrap on the toilet seat and peanut butter in my shoes. Story credit: Reddit / [deleted]