Verbal snapshot: DNA

Yesterday, after a long day's workshop on genomics and DNA, a repairman talked to me in the elevator.  When he heard that I worked with DNA, he asked me:
- How much DNA is active in humans?
- I don't really know, I said, it depends on how many genes that are turned on that very moment in your body.
- Oh, no, he said, it is 3 percent.
- 3 percent?, I said.
- Yes, he said, but you can raise it if you meditate very hard.

I didn't know if I should laugh or sigh.  I just said 'oh really' and left the elevator on my floor.  Where do these people get these facts? I mean, someone must be feeding them this fake science.