Scare Tactics gone wrong.

It's about one of those days where you have this colossal cousin gathering at your place. Bored of your aunts visually X-raying you or your grandmother constantly pointing out your physical shortcomings, you decide to head over to your room and watch a horror flick with your cousins. You put on some movie, kill the lights and sit down.
(And might I mention how with sixteen of your annoying cousins jam packed inside the same room, it's a bit chaotic and you can't figure out who kicked you with his foot right in the ribs. Painful story.)

Anyway, the movie starts and surprisingly, it's not scary at all. This favourite cousin of your's and you decide to scare the youngest cousin present who is whimpering and biting his nails every time the main character trips over something invisible on the road while being chased by some madman. Since you can't figure out who is sitting where, you pick out a place where you think your cousin was sitting before the lights went out. Finding the right moment i.e: the middle of an intense dramatic scene, your cousin does his famous shrill resounding scream right into the ears of your youngest cousin.

You hear a 'Hayeeeee margaya!' somewhere from your left followed by a loud thump.
Run to turn on the lightswitch, expecting to see your mortified cousin.

Laugh your head off when you find out that instead of the target (i.e: the youngest cousin), you had somehow managed to scream in your Tayya Abba's face (Dad's brother), scaring the shit out of him and making him fall from the bed he was sitting on, ending up with a sizeable dent on his skull.