This man must be in his fifties, seems intellegent so I can see no resason why he should not be able to apply the common decencies that we (nearly) all subscibe to. Is it really necessary to have to spell something out to certain people in words of one syllable for them to grasp the basic rule of thumb. That is, you do not interfer with someone else's song or tune if you are distracting them, or as in this case creating a bloody awful din. I would be very grateful if someone could explain the niceties of folk club etiquette to this chap.
I have raised this issue before when I was drowned out by another bodhran player (in a different club) who when asked to desist not only continued loudly but was joined by his female friend on one of those bloody rattle with beads round, both of them out of time with what I was singing and with each other ...... cacophony springs to mind