However, another big issue is cultural differences. We do have a sense of humor, it's just different than in other cultures because it is a product of a different culture. Simply put, what you might find incredibly funny is considered unfunny by Germans... and vice versa.
It's not that surprising that some people freaked out enough over Youtube being down that they'd call emergency services. I mean, I've heard of at least one instance of someone calling 911 because the restaurant didn't make a cheeseburger to their liking.
Anyone who's ever argued with dumbasses on the internet knows how stubborn and persistent they can be. Dozens of people can tell them they're wrong, and they' just stick their fingers in their ears and go "na na can't hear you!"
Especially if its a bet about an objective truth. Chances are, you provide overwhelming evidence for your position, the dumbass won't accept your evidence or will just change the rules and then claim the money you allegedly owe him.