There have already been crises, it is just that some crises are more subtle (though still quite devastating.) Consider the crisis of the Washington Mutual post-merger system integration. They purchased dozens of banks in the hopes of becoming a super-bank, but the details after the deal closes are often neglected. I was a Dime Savings Bank customer. My beneficiaries (upon death) on the account magically got converted into account holders, though only in the 1099 system, not on the reporting/statement system. We didn't even know until the next year when my brother's student aid was declined -- they noted he had ~$17,000 in his bank account, which was curiously about how much I had. He didn't even have a bank account!

Something like this can literally kill a semester/year of college if you arent savvy enough to deal with it. Luckily for us, tens of thousands of other customers had the same issue and the school was inundated with similar cases -- they realized something was amiss.

Incidentally, Washington Mutual refused to help -- they noted that the statement did not show my brother's name. They also noted that they cant talk to my brother since he isnt a customer!!!