It really amazes me at what people don't know. There's a reason it's called General Knowledge...Private Knowledge just isn't of high enough rank to be noticed. Everyone should know General Knowledge. He's quite a nice guy once you get to know him.
Now that the cawing of numerous dead-eyed crows has died away, I'm serious. I have come across future teachers who think that relatively lighter-coloured mealworms are Eurasian. I cannot wrap my brain around this appalling state of affairs so I decided to come up with a list of facts that everyone should know...but unfortunately don't.
1) There are only 8 planets in our solar system now. Pluto got demoted.
2) Birds are not mammals even though they are warm-blooded. They are birds. Avians. And they are very closely related to the dinosaurs.
3) The 3 primary colours are red, yellow and blue.
4) The Beatles are John Lennon, Paul McCartney, George Harrison and Ringo Starr.
5) If an 'H' comes before an 'O', like in 'Honestly', it is SILENT.
6) You cannot get pregnant from drinking sperm.
7) The gizzard, spleen, gall bladder and pancreas are all different organs but part of the digestive system.
8) Faxing yourself plain paper doesn't mean you're beating the system.
9) An 'umpire' makes sure everyone follows the rules. An 'empire' builds Death Stars and kills lots of people in galaxies far, far, away.
10) Expelliarmus is a disarming spell, not a killing curse.
If you've been reading through the list and going "Why am I wasting my time?! I knew all of this since I was sucking nutrients through an umbilical cord!", good for you. You are well-read and probably know more about the world than I do. Go forth and flaunt your precious knowledge.
BUT if you've been reading this and going "ORLY???", I suggest you visit your local library sometime soon and pick up a book, preferably without pictures.