Everyone's heard a bad version of the National Anthem. Maybe someone forgot a word or two, or maybe they missed a couple notes, whatever, it happens.
When you hire a police officer to sing the Star Spangled Banner, you'd expect him to know the words. You'd also assume he had at least SOME singing ability. However, to assume makes an ass out of u and me.
Holy. Cow. I love that they got people's reactions. Only one guy started to laugh, though! I would have been freaking out trying to ask people if they heard what I was hearing. Yikes.