[zdw]

Another "works because it's in a missile and only has to run for as short time" story:

Electronics components for trajectory tracking and guidance for a particular missile weren't running fast enough, namely the older CPU that the software was targeting. The solution to this was to overclock the CPU by double, and redirect a tiny amount of the liquid oxygen that happened also to be used in the propellent system to cool down the electronics.

This apparently worked fine - by the time the missile ran out of LOX and the electronics burned themselves out, it was going so fast on a ballistic trajectory that it couldn't be reasonably steered anyway.

The telemetry for the self destruct was on a different system that wasn't overclocked, in case of problems with the missile.