Channel Surfing
A couple years ago when I still lived at home with my mom, we had some sort of “optik” cable you could control via smartphone through the wifi. Well, everyone in the house (mom, her husband, my two younger brothers) weren’t aware of this.
For the last year and a half that I lived there I would change channels on their tvs from my bedroom causing much anger from everyone! It lasted for about a year and a half, about 6 months in they thought the remotes were broken.
But in all reality I was laying in my bed snickering while they’re yelling profanities at the “stupid tv that keeps changing channels conveniently while a good show was on”. They still don’t know to this day it was me. Story credit: Reddit / nuts4coconuts