Many years ago I had 'instructed' my Jet Provost 'Air Chief Marshall of the Future' in the
'PRACTICE' Speechless drill at Cranners.
Blow me down if we did not have a real TX failure a few days later. "XXXX" I blipped to Cranners'. Back came the reply "Speechless One - is this a practice"? "XX" went I. A moments silence, then "Roger - do not land here, you are to divert".
I landed at the Towers