Good grief Jenkins - a geography degree - I'm impressed.
One has known of people try to land on the DTG and not the grid ref. And there were a couple of Training Areas in Germany that were EXACTLY 100 kms apart, so if the pongoes forgot the prefix letters........
And furthermore Jenkins, you must remember Delta and Zulu timing c*ck*ups - so much more satisfying than Alpha and Zulu - to arrive at breakfast when expected for lunch!