Apologies if this has been on before.
Several years ago, Speedbird 747 approaching Bankok after a relatively long overnight sector.
Speedbird:Bangbird radio, Bangbird radio, this is Speedkok123
Bangkok radio
rrr, say again?
Speedbird:Bangbird Radio, good evening, this is Speedkok123
Unaware, or prehaps unwilling, to correct obvious mistake, r/t conversation got back to business and slightly more mundane!