Rinda is a Ruby implementation of Linda. The keywords that describe Rinda -- tuples, tuple space, distributed processing, Key-Value Storage -- reminds many people of MapReduce. I'm one of those people too. Therein, however, lies a trap. In this talk I will explore what I learnt from my experiences running a little application, with Rinda as a starting point, in this talk I will explore my experiences running an little application based on a MapReduce-oriented data structure.