This guy is the Art Buchwald of YouTube. He is so funny because he sounds so sincere as he lampoons life in the public school. I have done a lot of substitute teaching in my time, and this stuff is priceless.
This is my favorite:
GERRY BROOKS' YOUTUBE SITE FOR MORE FUN
How about forwarding this blog post to your favorite teacher?
Finally, have you volunteered for Kindergarten lunch room duty lately? You are really missing out on a great experience.