Agreed. There are so many infuriating software bugs I've hit by "something was watching file X and tried to consume it mid-write and pooped it's pants because

Agreed. There are so many infuriating software bugs I've hit by "something was watching file X and tried to consume it mid-write and pooped it's pants because there was invalid data". Not small things, either - I mean like "IIS crashed all our apps are down we have minutes before SLA problems".