It's McHappy Day at all McDonald's Restaurants in the city. It means that one dollar from every Egg McMuffin, Big Mac and Happy Meal sold today goes towards Ronald McDonald House in Toronto. That's the facility that houses families from Ontario who need to travel to Toronto so their children can receive cancer treatment. All day local celebrities, politicians and other well recognized citizens will be serving McDonald's customers: Pictured: Our very own Ian Grant pours coffee at the Cumberland Street location.