We should not be allowed to eat מצה on פסח! After all, it's made with מים שלנו ("our water"; that is, water that's been sitting out for hours and hours), and חז״ל say there's a risk of poisoning, ר״ל, from water that's been sitting out for so long. What gives?
This question is Purim Torah and is not intended to be taken completely seriously. See the Purim Torah policy.