Statements on the global interweb on things like Facepage and Twit often say things like - "the ingredient in this cake recipe will blow your mind..." or "...this weird trick when folding sheets will change your life forever...". But they never do.
I have always been baffled by that second one, I must have first seen it over 40 years ago probably in something like the "Ladybird book of mindless crap for young gentlefolk". I just cannot see how either of them make any sense at all. Incidentally the second one I recall usually finishes...