When it rains, it pours!  McDonalds Corp, still reeling from a spate of bad news over the course of the past year or so, formally apologized this week for copying an advertising concept launched by a freelance writer and photographer.   The ad series, which is comprised of a series of engagement photos between a man and a burrito, went viral on social media when it was first released.  McDonalds copied the concept and got caught.  You can see the original photo series here.