I was shopping in a self-checkout at a Home Depot, when I accidentally entered Spanish Language Mode. I think the software had a bug, in that the button “hot spots” were too wide. Apparently, this was a pretty big problem, as this sign shows:
Apparently, it is an even bigger problem, as this story shows:
Man takes [...]

Frustration is the mother of mickey-mouse, band-aid solutions.

A Picture is Worth a Thousand Words.