Brief Explination of Return Bug ~ Needed

Anyone want to briefly explain the return bug?

I searched this form and 23 topics came up for "return bug" and none of them contained it, just refrences.

Thanks for helping ^_^

ok, in brief:
If a return is not the last return in a function, then Warcraft does not check the type of the value you return. That means you can return any value which means that you can type cast variables that way.

thank you!!!!!!!!!!