My grandfather played a game with my dad when he was learning to drive in India. The car they had had a flat dashboard, so my grandad would put an almost full glass of water on it and tell my dad not to spill it. The roads in Mumbai in the 80s were NOT so smooth 😂😂😂

My dad passed it on to me in America, but we couldn't put a glass of water on the curved dash, so I just pretended and that was good enough. Now I'm a great driver.