This happened to me about 6 months ago while we were being vectored for approach to runway 22 at AMA:

Amarillo Appch: Lakes Air 790 slow to 250kts. (The 1900 Vmo is 248kts)

My CA: Uh Lakes Air 790 indicating 220kts.

AMA Appch: Lakes Air 790 I show you doing 300kts, slow to 190... (big sigh) disregard, Lakes air 790 you're 60kts faster than the F-16 3 miles ahead, turn left heading 130 vectors for runway 31.

My CA: (laughing) roger 130 and kill the afterburners!