Just got my butt kicked, but in a good way

There are days as a programmer where someone else just kicks your butt, and today is one of those days. But it's a good thing, I'm working on an open source project, and another person rewrote my code and said "What do you think about this?" All I could say was, "You just kicked my butt, but I like it."

That's a great thing about open source and collaboration. In this case, at a high level, I had a pretty good idea, but then someone else came in with their strength and really improved what I was trying to accomplish.