Not to be taken seriously:
Being a bit more specific never hurts those that have read the words unspecified followed by undefined and implementation defined in every line of text of horridly confusing to humans documents spanning hundreds and hundreds of lines without blinking for hours, ... and survived.
To be taken seriously:
Sometimes logic can become quite irrational. Sequence points, in translation units might impose or suffer imposed side-effects from previous sequence points, or subsequent sequence points, in ways that could drive a reasonable person MAD!
A typical example of ...cheap programming practices.Code:... goto johny_walker_red_label; johny_walker_blue_label: exit(-149$); johny_walker_red_label : exit( -22$);