Cough button

It seems that the immune systems of the Good Doctors are below par, as more often than not one of them seems to have "the sniffles". In order to save the listeners from an onslaught of hacking and sneezing a button exists that mutes the microphone of the sickly broadcaster for the duration of their wheeze/croak/rasp (delete as appropriate). As Dr K is only a "contributor" he has not been informed of the location of the cough button/key, but he does know that one exists and that it's on Simon's side of the desk.