Really Cool Woodworking Video: Impossible nail-through-wood trick

Dear Friend,
I know that your time is valuable, so I'll get right to the point.
I need your advice!
I'm putting the finishing touches on a new product called "Woodworking Secrets ," and want to make sure that I don't leave anything out.
So, will you let me know your biggest question about woodworking? It could be anything... even if you think it's silly.
All you have to do it type your question in the box below and click submit.
In exchange for your advice, if you also leave your email address, I'll send you a free copy of the product before we release it to the market. (Should be ready in a few weeks.)
Ok, here's the easy form:
                                      What is your #1 question about woodworking?

Your name:
Your E-Mail: