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.
When you occasionally have a really bad day, and you just need to take it out on someone, don't take it out on someone you know -- take it out on someone you don't know.
One day, down in the mystical forest, a magical frog was hopping towards a water hole. The forest was so enormous that the frog had never laid eyes on another animal before.
On reaching his plane seat a man is surprised to see a parrot strapped in next to him.