The phrase comes from Shaking Hands with Danger, a 1980 American industrial safety short made for workers handling heavy equipment. Its earnest theme song repeated the warning as a memorable chorus, and the film later gained a second life when it was featured and riffed on by Mystery Science Theater 3000. Clips and its song circulated online from there, and editors kept the short sung hook as a standalone joke. It remains popular because the old-fashioned, sincere delivery clashes perfectly with modern fail videos and casual risk-taking.
About this sound
The sung 'you're shaking hands with danger' line from the vintage safety film, used as a warning sting for risky, careless or about-to-go-wrong moments.
This short clip is a sung warning, a male vocal delivering the line about shaking hands with danger over a brief musical backing. The delivery is earnest and upbeat, which makes the caution sound oddly cheerful for such a serious message. That contrast is why it lands so well as a joke sting. Played over someone ignoring a warning, using a tool carelessly, or taking an obvious risk, it instantly frames the action as reckless and turns a normal moment into a setup for an accident that feels inevitable.