Scientists tell us another thing we already now.

BBC is carrying a story about fly swatting experiments, at least in the reported story there is nothing that you wont observe if you try to swat a fly yourself.

My advice is use a swatter rather than newspaper if you have one, swatters can move more easily and faster than a newspaper and cant easily be seen. Don’t attempt to creep up on the fly, he will still spot you, you aren’t that patient, just swat madly and repeatedly until you hit him, you are quite capably of hitting him in mid flight.