Yes, these are (apparently) all true.
Any time you feel dumb, don't worry. Check out the following excerpts from a "Wall Street Journal" article by Jim Carlton. Lots of people are dumber than you.
I'm writing you this letter to tell you that I'm leaving you forever. I've been a good man to you for 7 years & I have nothing to show for it. These last 2 weeks have been hell.
The children were lined up in the cafeteria of a Catholic elementary school for lunch.
A Northwest flight while enrout from Houston to Minneapolis lost an engine.