Did the British actually shoot down bombers/planes over London?

[senseispcc]

Yes, they did and one of them, Ray Holmes of No. 504 Squadron RAF, did even receive a decoration after raming down the bomber that was going to bomb Buckingham palace!
Do not forget they also shot dca guns over London and many ammo did not explode or if it did explode the scrapnel did fall down. So civil population should be in shelters and not only for falling bombs.