This took me way too long to MooTools:
When using event.target via mootools event handlers, I figured out, after way
too much testing, that event.target is NOT extended via $, and therefore doesn't
have accessors like .get('tag') and default's for the $ (dollar sign
extension).
I wasn't sure if this was note worthy of a post, but I reckon I'll fill this up with enough keywords that it'll hopefully show up in the SERP's for MooTools event trigger target source, etc.
We shall see.