After careful consideration Gonzy I would have to say it would be entirely your fault!.....did you really expect any other answer from the dark side?
You agreed to the inbound and then let all those departures taxi through the glide signal!
Anyway, you wouldn't have your "nasty" with another LL inbound because of the lateral separation you should have (even when I'm doing it), but just with the Thames / SVFR traffic underneath. Hopefully with 2 different controllers allegedly monitoring their planes, at least one of them should notice the LL inbound dipping below the glide (note the obvious advantage that I can not be in both positions at the same time!).
About the 10 check - if DEPs did not consistently say "I see the Speedbird" on first answering the phone before anyone can get a word in, then FIN might not consider it such a pointless phonecall and thus be more inclined to make it on a more regular basis - but what the hell do I know, I'm not even valid
PS are you going to have a small party when your post and your birth year are one and the same - not long to go now?