I like the Emma Thompson story about why she rolls her own cigarettes. The original idea was that if she had to roll her own cigarettes, she would slow down and smoke less. Ultimately, all that it accomplished was to teach her how to roll faster. So now she smoke just as much, but unfiltered.

This is my experience with chopsticks. At this point they don't slow me down, and I'm good enough that I can pick individual sesame seeds off of a plate with ease.