Grumpy Chicago Sky!

I was in Chicago last week for a convention ("Digestive Disease Week", no that is not a joke!).

Somehow I have always liked Chicago, it is a very neat city with lots of things to do. At some point in the afternoon, the sky turned really dark, but I don't think it ever rained.

After I was all lectured up for the day, I spent a bit of time in the Field Museum, another place I really love.