Sometimes, when the online abuse for being a young, African-born, Muslim mayor gets brutal, Mohamed Semra turns to the lesson he learnt on the back of a donkey in Sudan. He was just 10, a city kid from Melbourne on his first trip back to the country his mother fled with her six children when Mohamed was three. His family needed water, so his uncle propped up Mohamed on a donkey loaded with barrels and sent him off, alone, to the well about two hours away.