I recently exchanged some dollars for pesos and then handed back a $2000 peso, asking for it in $200 notes. ¿Me permite dos mil en billetes de doscientos?
Now, some stores still don´t have a spot for $200 in their drawers. These are less common and the teller counted 20 notes.
¿Cuatro mil? I asked.
Dos mil., she replied.
As I staarted counting the cash she realized her blunder. Meanwhile, I kept on counting. Later, it dawned on me that I was enjoying the silly psychological power trip. This time, I get to count the money, and the error will be corrected when I am good and ready, no sooner. Like, I would not have made it out of there, what with the guard and all, without correcting the error, but still she was nervous and all. Then I gave her back her share and asked her to observe while I re-counted the cash I was keeping, so any over or short to her drawer could not be attributed to this blunder.
My point is, that it is so rare for a teller to make an error in your favour, that you might enjoy returning the money, not only because it is honest but because it puts you in charge.
Que no pierda su trabajo. I explained.
¡Gracias! she replied.