Older sisters often play pranks on their younger brothers. This time, 18-year-old Zahra decided to convince her 12-year-old brother that the ceiling would absorb water if you held a basin of water close to it for a long time. To do this, she asked the boy to participate in the process. The basin of water was placed in an unstable position above her brother's head, holding the vessel only with a mop handle. The girl prepared to watch and film the fascinating spectacle of pouring water over her brother from head to toe when the boy's arms got tired. But no such luck! The boy showed remarkable dexterity and ingenuity. Never underestimate the mental abilities of your younger household members.