The bank has to cover it, but not today. And it's an agreement and not a surprise when it happens.
No, lets create a complicated mess, fractional reserves, excess liquidity and having money costs money, growth and more growth and ... and .. and. You're all falling for it because you're greedy and don't want to be left behind.
When is anyone going to realize the actual problem? How many times does it have to happen? I'll see you guys again in 10-15 years as we have the exact same discussion.