1.) Having a chronically ill loved one really sucks.
2.) Teaching long division to an 8 year old who has no interest in learning long division will make you want to pull every last hair out of your head. But when said child FINALLY gets long division, you will feel like you just climbed Mount Everest. At least temporarly.
3.) When your garden has finally started to actually produce beautiful, big ears of corn, which your non-veggie loving husband and children will acutally eat, don't get too excited. When it is just about ready to be picked, the neighborhood hoodlums, rather deer, will come and trample your garden and eat... EVERY. LAST. EAR.