Prevent more vertical code alignment cases

See [wikipedia arguments against vertical code alignment](
http://en.wikipedia.org/w/index.php?title=Programming_style&
oldid=592550160#Vertical_alignment)

### Short version:
changing the name of `kind` or (more likely) the method `send_mail` causes for larger patches then needed when using normal indent. It is comparable to:
```ruby
let(:foo)      { 'foo' }
let(:bar)      { 'bar' }     
let(:spacious) { 'space' }
```
 then deciding `spacious` should be renamed to `space` and having to change 2 more lines.