Most ridiculus things blocked

• Negative numbers
• Resources for explaining the complexety of helicopters not crashing (e.g. helicopters crashing) www.boreme.com
• Chatzilla instalation link - firefox extension
• Foxyproxy instalation link - firefox extension
• Switchproxy instalation link - firefox extension
• Downloading realplayer by normal methods - e.g. following links on main site.
• A picture of an undead squirrel - and all other pictures on the svn worldforge media depositary. (includes pictures of acorns)
  
• Uranus
• Science quiz questions - physics class was doing an online quiz on the interactive white board - one of the questions was blocked. learning is dangerous :)