We were in a Diamond MEP on an IR training sortie, doing a low-drag, high-speed ILS app into a major international airport as to not hold up the traffic behind.
ATC: AB-CDE report speed
Student: 150kts AB-CDE
ATC: A-DE reduce to 130kts, traffic ahead is an Avroliner on a 3 mile final.
Poor guys in the Avro...must have had 'em faces all red
Needless to say we had a giggle.