Where I worked last, they had a schoolbooks/paper/backpack giveaway thing once every year. I discovered that some of the (Chineese-made) calculators had multiple square-root keys, misplaced function keys. Got a kick out of that...would the teachers notice when the numbers were wrong?
Honest, yes, perhaps a character flaw that will not serve him well. Now, why didn't anyone in charge of approval verify this calculator?