It's a big base Nutty, easy for someone to "blend in" I would have thought. Now, if you want to know about "illegal lodgers", my first posting from Halton in the very early 70's was RAF Colerne. One of our SNCO kept a female in a Fird Anglia on the station car park, behind the stations Astra cinema. A few of us were detailed to ensure the young lady was "properly looked after". My own task being to deliver a cup of coffee and one bacon and one sausage sandwich to the vehicle each morning. She was there when I arrived in 1971 and when I left in 1973, her ablution facilities remain a mystery to this day. I'm sure others of the era might well remember it.
Smudge
