Yes, at the risk of stating the obvious...
I recently found out that some people don't know these things:
1. Milk comes from cows.
2. Eggs come from chickens.
And as my once tiny son ask,
"Mom, do cows come from hamburger meat?"
3. Yes, cows come from hamburger meat!
There ya' go!
At the risk of stating the obvious,
those are the three things I think you should know.