everyone falls down, you just got to get back up.

人人都摔倒，站起来就好。

不要放弃 - SpeakingMax英语口语达人

But when the inevitable person not in on the joke pushes the button, everyone in the square falls down as if suddenly electrocuted to death.

FORBES: Brazil's Latest Prank: 'Kill' And Run

For various reasons, everyone likes to talk about the "analog hole" problem with DRM protection: pretty much all security falls down in the face of a well positioned camera and mic setup in the back of a movie theater.

ENGADGET: New audio "watermark" copy protection scheme for cinemas in the works