I truly apologize to you sonah, some of us thought you were joking. Ryan
None of these thermal compounds are dangerous to humans but ingesting any of them is not advisable even if they say they're non toxic, but you are not going to ingest the product anyway.
Worse case is you may get some on your skin if you are careless applying it, just wash it off, no big deal, and regarding the package warnings disposing into the environment is frowned upon, and those warnings are required by law.
can I store the ARCTIC MX-4 inside my PC Case in Secret corner?
If that's what you want to do yes, I store mine in my top drawer.
do i add only one drop a Bean Size in the middle of the CPU ?
Cooler master has definitely improved it's base contact so disregard the first picture as you will not need to sand paper the base but pay attention to the various application coverage, I suggest the 2 line method you'll see in the lower images.http://benchmarkreviews.com/index.php?option=com_content&task=view&id=170&Itemid=38&limit=1&limitstart=5
when I finish can I Turn ON the PC ?
i must Wait for the ARCTIC MX-4 thermal to Dry out?
Artic MX4 is a very good thermal compound, it's covered in the Thermal Roundup in my sig.