I had a co-worker complain that I was using spaces instead of dashes between numbers, silly complaint, but ok.  Then she complained that I was using slashes between letters and shouldn’t.  Ok so I can’t use slashes, but you want me to use dashes, my, the problems you are having with your co-workers.  After all I’m accomplishing the same result, just not in their way, I believe they need a sense of control, I know I need them to bug off.