Michael regrets revealing that Stanley is having an affair, so he spreads a bunch of lies about everyone else to cover his tracks--except that one of the lies that he spread actually turns out to be true.
Did You Know?
[about the guys doing parkour
The goal is getting from Point A to Point B as creatively as possible, so, technically, they are doing parkour as long as Point A is "delusion" and Point B is "the hospital."
References Casino Royale