It's all fun and games until the type of the thing you're iterating becomes 'unsigned int' (because you finally ran into a case where you overflowed 2^31-1) and

It's all fun and games until the type of the thing you're iterating becomes 'unsigned int' (because you finally ran into a case where you overflowed 2^31-1) and suddenly need to track down all the places you sinned. Been there. It sucks, especially when customers are down and people are yelling at you.