From: Brian Candler <b.candler@...>
Date: 2012-02-22T03:24:59+09:00
Subject: Re: cheered to soon enumerable woos

Firstly, post a complete small program which demonstrates your problem - 
something we can actually run and see exactly the same as you do. And 
copy-paste it exactly (or post a URL to pastebin or similar)

And secondly: include? will test each member you yield individually. If 
the member you yield is an array, then it will only match another 
identical array.

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