Hell yeah! As someone who was drugged for about a year and a half with Ritalin, I am personally touched by your making this one. I can't wait to see a DRO society where such parents are actually brought to justice in terms of compensation costs, having to pay for therapy and damages.
For one thing not being the jehovas witnesses would be good enough news and having the discretion of just leaving the card would be more respectful of people's time. If you want to hear the arguments we won't bother you with them, you can go and check them out yourself.
This is A GREAT idea, I am planning on doing something like it myself once I am done recording my videos(and enter phase two which is marketting) and go to schools, buses, offices, etc and hand them out.