Putting the finishing touches on my YAPC::EU 2009 paper and at the last moment, decided to run a code snippet since I was trying to compare it to Ruby mixins:
package PracticalJoke; use Moose; with 'Bomb' => { exclude => 'explode' }, 'Spouse' => { exclude => 'fuse' };
I should have written excludes and not exclude. That's a very easy mistake to make, but given that people might want to run my examples, it's embarrassing :)