I have applied for planning permission to build a grassy knoll outside Downing Street. I just hope that the customers at my new high powered rifle shop opposite the mental hospital aren't too mental to put two and two together. I have also constructed a deserted Book Depository which coincidentally has excellent views of Rupert Murdoch.

No, I don't know what a 'knoll' is either, but I know it's going to be grassy.