I saw a pretty cool go-around at JFK last summer, also on the Canarsie approach. I found a nice spotting place in a public park just across the highway from the Ramada Inn, right under the approach path for 13L. After an enjoyable hour or so of spotting, I saw a TAP Air Portugal A340 landing in the distance on 13R, which was a bit strange, as that runway was being used for departures that day. Then on my scanner, I heard the controller say "Air Portugal, YOU ARE ON THE WRONG RUNWAY - GO AROUND IMMEDIATELY!!" After he initiated his go-around, another aircraft keyed in on the frequency with "wow, that's kind of scary..." The TAP A340 appeared again in about 15 minutes on the proper 13L approach, and I snapped an OK picture of it as it went over - of course it got rejected by airliners.net.
How common is a snafu like this?