Sloane Square?
Right, this calls for a quick consult of my Peter Jones commemorative rulebook.
Ah. I see. Very interesting play, Maud. I thiiiiiiink you were attempting to provoke a SW1W - or 'sweew' - subterfuge by playing a prime location square within the hour before midnight, thereby creating a nominative - also known as a 'golden' - box.
If you'd been successful, you'd have inverted all cut-and-cover lines and turned the Bakerloo line squeamish for a fortnight.
However, Sloane Square is in fact a) a rectangle, and b) a roundabout. Its sides do not achieve equal length, even during the pre-witching hour. Ergo: no golden box. Nice try, though. Devilish bad luck it didn't work.
So, after a quick kefir break at Daylesford Organic we'll don our false hipster beards and £6 coffees and bang things over to Shoreditch High Street.
I shan't patronise any of you by further explaining my reasons.