Today I had a unpleasant story. It took me urgently to replenish the mobile phone account. What could be simpler, - I reasoned, - it is necessary to use the payment terminal! No sooner said than done. I go to the nearest slot machine, enter the phone number, shove a hundred, another into the bill acceptor ...
... But what is it ?! The inscription on the terminal screen is red on white - for crediting 160 rubles. No, no, - I think, - so it will not work, 20% of the commission is a bit too much even for such a super modern device, give me my money back. But unfortunately, the money-back function was not provided for, and with a spoiled mood, cursing the damned capitalists, I moved on.

Morality - before shoving your money in the terminal, do not be lazy, find an inconspicuous button with information about the commission, do not let some piece of iron undermine your faith in humanity.