Danny,
Don't be apologetic. I for one have just understood why several of the "accommodations" provided to me and my family in 30 years of RAF service were a bit dodgy. It also explains why one will be a great place and sometimes, for the same money, rubbish. Maybe the rubbish ones didn't have as discriminating an invigilator (as yourself) when originally accepted. How often would many decisions be more valid if the decision maker had put himself in the "recipients" position ?
Keep up the good work Danny, it's all very relevant, and means a lot to your readership.
Smudge