Well, 1 primer can be dangerous, as one of our members discovered:
http://www.thehighroad.org/showthread.php?t=349403
So, 10,000 are 10,000 times as dangerous, and 20,000 is... I'm just yanking your chain. :evil: I don't have a clue why they capped it at 10,000. And I'm not going to...