You think the world has gone stark-raving mad now? You ain’t see nuthin’ yet, buddy!
How true.
I'm an avid fan of the Dennis Miller radio show.
He makes quips like yours often, but no two are the same.
A recent one of his, and I paraphrase, is to "act like you're blasting down the chute of a water-ride (roller coaster), don your seat belt, plastic poncho, and hang on -- the ride ain't over yet!"