In the Nokia IPSO Firewall early releases there was an Egg placed by a bored programmer. When using Lynx browser to administrate the box (rarely done except when really desperate) If you go to the shutdown section the word fun appears as an option and if you follow that link it just says "egg". Not very exciting I agree but lynx is limited - however this option did not appear on the web interface. It was scary to see the first time as we thought our expensive firewalls had been hacked... I really would like to meet the idiot who put that in :)