Man Ignores Museum Rules, Destroys Priceless Clock

Museums don't post “Please don't touch” signs because they're being snooty jerks, they post these signs hoping museum visitors will have enough smarts to realize the objects on display are often priceless and irreplaceable.
But some visitors can't help but go full blown Mr. Bean when they're among precious artifacts, and the results are just as disastrous as they are on TV, only not as funny.
A man visiting the National Watch and Clock museum in Columbia, Pennsylvania got the bright idea to paw at a priceless clock on the wall and, as expected, disaster ensued.

(YouTube Link)

This is why we can't have nice things!