Once upon a large military exercise off the north of Scotland a US carrier F14 Tomcat pulls out of low level calling ScotMil Allocator ....
ac "Scottish this is $%66ee&&&gle]]!! zero 2, requesting radar climb"
ScMil "Testicle 02, squawk 6501 ident"
ac "JESUS H CHRIST, Scotland, the callsign is foxtrot, alpha, sierra, tango, echo, alpha, golf, lima, echo, F-A-S-T-E-A-G-L-E 02"
That took balls. Sad ATCO, I salute you !!