Authors:

Every writer loves the idea of being able to go in and fix a problem and then leave without obligation. It's fun!

"Joss Whedon Talks THE AVENGERS Deleted Scenes, Helping Out on Other Marvel Projects, the S.H.I.E.L.D. TV Series and More" by Adam Chitwood, collider.com. August 30, 2012.
Every writer loves the idea of being able to go in and fix a problem and then leave without obligation. It's fun!