It was one of the most hated moments from the prequel trilogy, which is saying something, because the prequel trilogy featured a lot of Jar Jar Binks:
During the livestream of Star Wars Celebration Orlando, Hayden Christensen was asked how he feels about sand, to the roar of the crowd.
"Well, you know, it's not very smooth," Christensen answered. "It doesn't really stay in one place. So I'm not such a big fan of it myself. If it leads to the water, I can tolerate it. Anakin came from a desert planet though, so I can understand his contempt for it."
Christensen also said that his life is still very "Star Wars centric," due to new fans discovering Star Wars all the time, and that he's enjoyed being at the Celebration and connecting with fans. That connection with fans, it seems, is more powerful than his hatred of sand, however, as Anakin was willing to sign a jar of it for one appreciative fan, according to this photo from our on-the-scene reporter Jeremy Konrad: