Once had a Lightning (what else!) on 09 at Leuchars which had a relatively high DH for a PAR (Cat I) approach of about 320' or so (due to terrain), if memory serves. Got to the "Passing decision height, advisory information follows.." (pause for effect) and got the "KEEP TALKING!" about 8 octaves above middle C and did so in both azimuth and elevation (one was supposed to stop GP info at DH). Cool dude fighter ace landed in the thick haar that had crept up the airfield (as it did). He shut one down to taxy back in.
Never said thanks of course!
PAR - best video game in town when 600 mtrs and 8/200 (ish!)