Left Them Worried
I was really little at the time and decided to screw with my parents. I think they might have gone on a walk or something and when I heard the door open downstairs, I hid under the covers on their bed. Impromptu hide and seek, if you will.
They called my name a few times and after I didn’t come out they ran around the house looking for me. I was really smug the whole time because I thought they were stupid for not seeing me right under the blankets, but looking back on it that was kind of a jerk move on my part.
Anyway I popped out a few minutes later, only to get immediately yelled at to NEVER do that AGAIN we were SO WORRIED. Source: Reddit/justatheorist412