Eeggs+Criteria

I came across this excellent criteria list on the Web, it is not mine, reason being it could not be improved upon, the same as Asimov’s Robot description could not.
 * Eeggs Criteria **

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 * // A real Easter Eegg must fall under five criteria. //**

// 1.) The information has to be undocumented, hidden and not obvious to the viewers. They can't be something that goes along with whatever software you're using. The Easter eggs only stand out because they are different and don't fit into the regular context. The programmers usually have some connection with the "eggs," so they include it in the program for extra entertainment, mostly for themselves. //

// 2.) All Easter eggs have to be reproducible. With a set of instructions, anyone has to be able to reproduce the egg. //

// 3.) They have to be placed on the program by the creators for their own personal reasons like a signature, an inside joke, a tribute, etc. The eggs must have been placed on there on purpose and through the general knowledge of all the creators. //

// 4.) Easter eggs cannot be malicious for any reason. They are only meant for fun, not damage. //

// 5.) This the most important one. They have to be entertaining. If it's not, it's not a legitimate Easter egg. //