The problem is that you throw this in your module, and then someone else defines another Array#to_sentence (say in some Natural Language module you require) and

The problem is that you throw this in your module, and then someone else defines another Array#to_sentence (say in some Natural Language module you require) and all of a sudden you've got hell on earth. For more information, take a look at some of the discussion about Array#sum: http://github.com/raganwald/homoiconic/blob/master/2009-04-09/my_objection_to_sum.md#readme http://github.com/raganwald/homoiconic/blob/master/2009-04-0...