Oh no HD, oh no

You seem to have let slip your MA in grammar and spelling. Watch out, the grammar police may be on to you and you may also not give the 'correct' image to any aspiring ATCO's because last time i checked.... it was 'or'.
Anyone who thought of becoming an ATCO who got shot down by yourself and the fellow English faculty on here as they missed a spelling or any punctuations is now free to apply to their nearest ANSP quick smart.
It gets us all in the end.
Pot kettle and black dear chap, time to trade in those bi focals