Using your horn to say g'day, tell someone you're here or to tell them to just 'get off the road' is actually against the law. Victoria Police posed the question "Can you beep your horn to call out to ...

Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive tract ...