I recently stumbled upon If You Watch It Backward, which chronicles what things would look like if you thought about them backwards (duh!). There are some hilarious entries (and many that are a touch blue, so enter with care). Such as:
If you watch Jeopardy! backwards, it’s a show about rich people paying money for answers to questions.
If you watch Rambo backwards, it’s about Sylvester Stallone healing people with his magical bullet vacuum.
So, if your attendees had to describe your conference backwards, would it be "exhausted people rest in uncomfortable chairs in dark rooms until, invigorated, they get to go home"? Or, possibly worse, like this description of the movie Inception: "If you watch Inception backwards, it’s pretty much the same movie, except for the direction the van is traveling for about half of it"?
(Thanks to Mental Floss for the pointer to this most excellent time waster. Now I'm thinking about pretty much everything backwards...)