there is no amicable solution and you should be aware of that before you purchase any shipped item
I beg to differ, I have come to many amicable solutions with sellers and buyers over the years, and communication has been key in every instance... And I have been on both sides of the table and when I was the seller I bent over backwards to come to an amicable solution with an unhappy customer even if it cost me money, that part of the cost of doing business... I sold exotic animals both retail and wholesale for many years, I know full well about potential losses with living creatures and took a loss many times to make it right...
This is the reason I don't personally sell eggs via the mail or even in person most of the time, as I can not control what happens to them in transit...
Sellers don't sell eggs to make a loss and sometimes they will take a loss just to keep someone happy and to avoid bad feedback but that's the same as being blackmailed really.
And again I beg to differ, if you choose to sell a product, sometimes taking a loss and making a customer happy is simply the cost of being in business and offering good customer support... Suggesting that truthful negative feedback is blackmail is as wrong as suggesting that a tracking number is proof you delivered the item that was paid for even if it never arrived or was delivered...
but if you consider the other side of the coin where you are selling and shipping eggs would you sell me 12 eggs and guarantee that I will get at least 8 chicks.
Do you want my honest answer?
Yes, if I was to sell viable hatching eggs on Ebay, I would in fact guarantee that you would get some viable hatches (can't say if I would guarantee any particular percentage) but if the eggs I sent resulted in no hatches I would certainly replace those eggs one time at no cost or refund the money... But, only after opening a dialog with the buyer and trying to sort out what went wrong and what could be done to fix the problem aka keep open a channel of communication...