No Ragrets
We don’t know who this person is, but judging from the facial features we can see, he appears to be a very young child. Allow us to correct that—he appears to be a very dimwitted young child. Everyone knows that even if you don’t have a pen, you can focus on your gains.
You can also see by the way he slumps his that he knows the error of his mistake. Now, is it the tattooist’s fault? Not at all. If you bring them something you want tattooed, they’re not obligated to correct your spelling. For all they know, this kid really did want no pen no gain tattooed on his arm.