Feedback

Again, I'm not actually suggesting that you merge this in and remove all your code. This just makes it easier to leave feedback :smile: 

Please submit a help request for any questions that you have about my comments.

### Don't merge this pull request
Nice job with this method. There's actually [Enumerable#any?](http://ruby-doc.org/core-2.1.2/Enumerable.html#method-i-any-3F) that will let you do this a little bit easier.

Rewritten, your method would look like:

```ruby
def contains_point?(x, y)
  boxes.any? do |box|
    box.contains_point?(x, y)
  end
end
```