well you take time and chance and then the longer you play the higher the chance that even you will make such an mistake.
Has nothing to do with stupid. Its simply math ...
This topic is too funny. So ... vendoring items is no different to playing roulette, it just catches up with you?
Now it must be asked, do you close your eyes, randomly move the mouse, start clicking, and hope for the best? If not, it isn't a matter of chance, but of incompetence.
PS - Safety scissors available upon request.