Whittlage...

That's two.

I really should work out an emergency forgotten badge and locker key plan. The cycling shoes, I could probably get away with, but sitting around the office in shorts... probably wouldn't fly. Spare pair shorts

Yip, just as I came up towards Shandwick Place it dawned on me. I didn't have my badge and thus my locker key so it was a quick turnaround and to the train station.