Oren- I'm not saying the customer is (or should be) _forcing_ the seller to go to extreme measures. I'm saying that some sellers voluntarily _will_ go to extreme measures because it is important to have a satisfied customer. Even at a loss. And that that generosity will be repaid a hundredfold in repeat business/referrals.
That is entirely based on the scale of business, income, and ability. If big companies such as Amazon do not go out of their way to do so- there's a very good reason- because it will cause a loss.
You refer to this as a one time thing, which may, or may not be the case- you -can- end up wrongly sexing several snakes, for several different people- and then what?
It's very romantic and generally, that approach is taught to customer service representatives- when you're a business though, the point is to make a profit- and if you end up doing that for every customer, you will find yourself bankrobbed easily and quickly.
I also believe it's a very optimistic, but largely unrealistic, to think that every satisfied customer -will- buy more. The fact that a mistake was made to begin with is, in many cases, enough to thwart said person from dealing with you again.
Nanci, you say that for certain customers, it could be beneficial to incur a loss for the benefit of future dealings, and that's fine. However, the OP pretty much suggested that a 50% refund+keeping the snake is not enough, and others went so far as to encourage her to pretty much ruin his good name by spreading this allegedly "horrifying experience" which will hurt the seller.
So yes, it would be a very nice thing of the seller to do, and at times, beneficial- but to expect or demand that the seller does that for me? and over -this- kind of a mistake? absolutely not.