1) Knock on their bedroom doors. Without waiting for an answer, barge into their rooms.
2) Make loud beeping noises at your alarm clock. When people ask what you're doing, tell them you're getting revenge.
3) Click the light switch on off when a certain family member is in the room.
4) If you have siblings, get you, your siblings and your parents in the same room and interrogate them on who is the favourite.
5) Follow them around the house and step on the back of their feet.
6) If you're somewhere there are other people, look at the guy next to you and loudly ask your parents why they smell like farts.
7) If they come close to your face, suddenly jerk back and ask them if they have been eating garlic.
8) Use bad grammar and don't stop even after your parents correct it.
9) Call your parents by their first names.
10) Scold them in a fake language.
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How To Annoy People And Make Them Think You're Weird: A Guide
Randomhey (though i have written some chapters, not all of these mine, so credits go to the people who have written them)