scum ponds and Sudoku

Yesterday I learned never to go to a bike race at Firebird International Raceway just south of Phoenix. You'd think the air would be better outside of town, but they had a scum pond. Moldies don't do well with scum ponds.

In slightly better news, I tried that big hat, loose-fitting long pants and sleeves trick so I didn't need to wear sunscreen. It worked like a charm, and in the 100 to 105 F heat, I was always standing in the shade.

Today I mostly learned that some Sudoku puzzles actually make you guess instead of just being able to play process-of-elimination. Math nerds hate guessing, particularly when they don't feel good.