>Typically, a long, poorly constructed piece of code can't be properly tested, so there is some truth to what you say.
>
>>Or an accident waiting to happen - code is morphing. You cannot sell a car with tires likely to blow at speeds > 20mpH without fear of a liability suite, even if it rolls from the dealers place.

That is the biggest issue with the code that started this thread. It is practically impossible to test ALL the possible paths through one of these methods.