They're so far outside the norm that if they were averaged in to the normal statistical curve of things, they'd break it. These are hardly indicative of the typical way things are, but nevertheless, they are there.
These are not the things for which the normal rules are written. These are the things which make it necessary to have loopholes, exceptions, case-by-case coverings with attention to detail, to figure out why and how it's an outlier, and deal with it as it is, and not just by the numbers, because by the numbers, it shouldn't be there.
