I won't quote the Bible here, we all know the passage, but the way I was raised, if anyone knows you're fasting, you're doing it wrong.
That Bible passage is
sometimes pulled out by the slothful [not speaking of you!] who don't want to be reminded of same. If everyone was at home [quietly] fasting, this world would be a different place to live in. All Beck did was encourage; not harmful, it was a good move, imo.
These men inspire fasting, btw, a simple life in God, and prayer:
http://www.youtube.com/watch?v=sgNj2Sf_mgo