Anyone in London wanna lead the rebellion?

I just want an afternoon off, just sitting somewhere, quiet, peaceful, away from most of reality. However, because the rest of the world insists on continuing, I need someone to star the movement. Just walk out. Start a ripple effect of disgruntled drones leaving the office space, and by the time it reaches me it'll be such a tidal wave of movement I'll get lost in the fold. Or I suppose I could just make some excuse and go sit somewhere in the city for a few hours, if Monday isn't the right day for raging against the machine.