It certainly going to be a McHappy Day for some young children on the South Shore in need of a mentor. Nearly $3,200 was raised yesterday through proceeds donated by McDonalds in Bridgewater to Big Brothers Big Sisters. It was the most raised for the organization on McHappy Day. A dollar from hot beverages and select menu items went directly to BBBS. The money helps fund mentoring programs and after school support for youth in the area. Over the years the partnership has helped raise more than $13,000 for Big Brothers Big Sisters.