Have you ever had one of those days that starts with waking up and feeling like you don't know where you are? It's safe to bet the kid subject to the prank in the video above could more than identify with that sentiment after he walked into his bedroom to find it ... well ... upside down.

To be fair, it wasn't quite upside down but rather at a 90-degree angle, and it's all thanks to his older brother, who went so far as to nail his little bro's furniture to the wall in order to pull off the full effect.

Also, notice the purple walls in the boy's room? Those, too, are the product of one of the brother's pranks ... but a separate one in which he turned the room into a "girl's room" after his sibling went onto his Facebook page without asking.

Call us old-fashioned, but what ever happened to the old "quarter glued to the sidewalk" prank?!