The takeway is that, anecdotally, the UPS $1,000 threshold appears to genuinely change behavior; anything less is pragmatically just another package subject to careless/willful transport abuse.
I don't want to pay an extra $10 for every shipment.
It's also the episode with the "boudoir" photographs of George taken by Kramer, for the benefit of the photo development clerk, who he thinks slipped in a suggestive photo of herself in the photos she gave him of his last roll of film. You may have seen the images of George posing before even if you're not a Seinfeld fan. It's a pretty memetic set of images. People have done oil paintings of them, lol. Here's a screenshot example (mildly NSFW, male in only boxer shorts): http://www.inpapasbasement.com/wp-content/uploads/2011/03/Ge...
The courier/post office will generally validate that that sticker matches the value you told them for insurance purposes either way.
Of course you can choose to not believe me, but I was explicitly told that the "value" field is completely ignored especially on any post from China, because 99% of the time it's just nonsense and pretty much everything arrives as a "gift"(I once had a brand new Asus laptop worth about $800 that was declared with value of $15, contents: "electronic cables" and "gift" - the customs officers wanted to see receipts of all payments I made for it before releasing it).
>>The courier/post office will generally validate that that sticker matches the value you told them for insurance purposes either way.
Now this seems completely bogus. I've also sent thousands of packages and no one has ever "validated" if what I am sending is actually worth as much as I put on the declaration. As long as it wasn't illegal to send it in the post no one cared.
I can confirm that in my country (Australia) packages are rarely opened and if they are, it's seldom for duty assessment but checking for contraband of whatever nature. Even if they do flag you for a duty check they don't need to open the package - they do have x-rays, you know. Try and declare a $10,000 drone as a package of t-shirts worth $5 and the officer doesn't need to open the box to reject your "estimate". That said, most sites of any repute worth upholding will print the real value on the declaration, non-negotiable.
Customs officials in Norway will generally charge the customs fee on the declared value, but if something looks off - a huge, heavy box with a $1 declaration, for example, they can and do open it to verify the contents.
A close friend who owns a UPS franchise warned me of this behavior and advised against placing any indication of fragility on the box. If I recall the threshold correctly, $1,000+ declared-value packages are identified and set aside in a separate group within the store. When a driver comes by to pick up daily packages, the store clerk alerts the driver of which, if any, have been declared and these are individually handled with the sort of care that a customer would generally expect. The regular drivers that service his store appear to take the high-value thing quite seriously, but I do wonder how far down the logistic chain that level of seriousness propagates.