It may only be April 21 but it is summer in San Francisco. Hot and a bit humid. I was in a meeting this morning and someone made an interesting observation about San Franciscans - they stop functioning in the heat. We're only having 80s and 90s, mild compared to Houston, but the entire city slows down to a crawl and people call in sick to work - not just to hang out at the park.I, however, am at school preparing my Statistics final paper.