Tell me about it - only it's not London, but Brum. Have had that sodding copper chopper hovering in a tight circle around my street for 90 minutes at least 3 times this year.
Around 2 am.
No sirens, no sounds from the ground, and nothing on their twitter feed.
Oh, and it has some sort of flashbomb on the front, so as it's bearing down it's blinding you - really wouldn't have been out of place in "Apocalypse Now".
I have little time for a police force that tries hard to intimidate it's citizens.