Perks indeed. When I was in the RAF (based at Honington in Suffolk), we had a week's firing practice arranged in Altcar barracks in Liverpool. I was seeing a girl in Liverpool at the time, and my parents home was in Manchester, a short trip away. At the end of the week, I planned to depart the barracks to do my own thing locally for the weekend before travelling back to Honington on Sunday night. This was refused on the basis that the unit should always travel as one, to preserve the integrity and morale of the squadron, and to not be seen as affording any perks. Thus I had to travel the 235 miles back on the coach, only to have another 235 miles to travel back again, then a third time before Monday morning (I simply postponed that visit).