Never assume anything!  The 3 interviews that I have undertaken over the past couple of weeks were arranged a few weeks back when I made my initial telephone calls to the interview sample population.  At that time I confirmed with each prospective interviewee the day, date and time of the planned interview and confirmed with each one that they were happy for me to visit them at home (rather than them coming to the surgery). 

I decided that as a few weeks had passed since the initial arrangements were made that I ought to contact them to reconfirm the arrangements.  Each one, without exception, was expecting to attend at the surgery - I guess that is where they always see me!  Once explained that I was willing and would like to undertake the interview in the home, they were very happy for this to occur.

For me, the moral of this story is do not assume anything, irrespective of how well you think someone has taken on board the details of the prospective arrangement.  I will be contacting each and everyone in future prior to going along to interview them to ensure our paths do not cross as I head towards their home and they head in the opposite direction to the surgery!