The process goes something like this (translated from Portuguese):
You: How much is this lamp?
Vendor: Two hundred and fifty reis (R$250).
A moment later…
Vendor: But for you, two hundred.
You: But I only have one hundred and fifty in my purse. And I have to pay for parking. So I only have one hundred and thirty. Oh wait, I need to buy a soda. I’ll only have one hundred and twenty-five.
Vendor: No problem. Today, I’ll give it to you for one hundred and twenty five.
Everyone is happy. The vendor pawned off another lamp, and you got a deal.
But as soon as you step outside with your purchase, the thought that will torture you for the rest of the day begins to resonate in your brain.
What if I could have gotten it for one hundred?