>>>https://consumerist.com/2017/06/22/home-depot-menards-customers-cry-false-advertising-when-they-learn-4x4s-arent-actually-4x4/
>>>
>>>I suppose it was inevitable that someone would test the waters one day...
>>>
>>>In my last couple of DIY projects, I converted everything to mm. Working with the likes of 13 5/16" is enough to drive you nuts.
>>
>>You have to be careful with nuts. Some of them are not metric.
>
>Nutters they are... US home of the silly lawsuits.

While there, I learned three most probable causes of silly phenomena that reason can't explain, why do they do things in insane ways:

1) to prevent a lawsuit, because one guy from Nashville once sued against that and got rich
2) because the insurance will charge them much more if they do otherwise (and that's actually a consequence of (1), because the insurance would pay)
3) because that's a stipulation in the loan agreement with the bank
4) for security reasons