There are some spam issues in the comments, so I had to disable comment editing for a short time. It'll be back once the spam bots are gone. FYI... they leave a comment with "great" and then edit in the spam stuff later, to get around the filter.
(ONLY for actually turning an object, not turning back in context of travel or whatever. Needs a direct object, so if you turn back then you need to use a self reference. )