Kathy Sierra is right: Pair Programming is NOT always a choice. Some people are work best alone. This reminds me of something that really got on my nerves during a keynote speech at the Minnesota Government IT Symposium. The speaker’s message was that if pessimists only tried a little harder and improved their attitude, they could be optimists, too. What a load of crock. His assumption that pessimists even want to be optimists is not only seriously flawedflat-out wrong, it’s insulting.