Yesterday we had a visit from our chairman - Bill Gates. It was low-key visit; he arrived after lunch, was shown some demos (including one from my colleagues Satnam and Byron), and then he gave the lab a brief talk about what he's up to (ridding the world of malaria) and some thoughts about Microsoft (MSR is very important to the future of Microsoft - hurrah).
In fact it was so low key, I looked up from my screen-ful of F# code and saw in the reception area, Andrew opening the front door for Bill to come in. I managed to pick up my phone and snap Bill meeting our directors and Maggie (the office manager, and real boss of the building!).