Yes, last year I decided to try out the fasting for the month, just to see what the experience is like. I knew a few muslims and wanted to know what it was like physically to go through the fasting (I always like to see what people go through, it expands my frame of reference, etc). I was also looking more and more into Islam so I decided the time was right. I also told God to make this as easy as possible if this is what he wanted me to do. The first 2-3 days were harder simply because my system was adjusting but everything went really well! I got so much out of it (spiritually, mentally, physically, etc) that I decided to make it a yearly thing.
This year though, it might be more religious and hopefully more of an interactive Ramadan.
Sorry, I rambled on didn't I? Sorry.