Ruby: inject

I love inject. To be more specific, I love Enumerable#inject. I find it easy to read and easy to use. It's powerful and it lets me be more concise. Enumerable#inject is a good thing. Of course, I didn't always love it. When I was new to Ruby I didn't understand what it was, so I found it hard to follow. However, finding it hard to understand didn't make me run from it, instead I wanted to know wha