Friendly Warning

"This little light of mine," the two old men sing as they walk down the subway car, hats out for change the commuters dutifully throw in, "I'm gonna let it shine."

They make it all the way down the train before they make it in front of the old man reading a book, who is not pleased to have his quiet disrupted. "Shut up," he snarls, but they don't miss a beat. 

"Hide it under a bushel, no, I'm gonna punch your nose," they sing.