Man, I need a new job...

I'm a receiving clerk at a food distribution company. The inventory is off on Grande brand mozzarella cheese used for making pizza, around 60 cases or so. They ask me why the inventory is off (basically wanting to know if its my fault).

I've been at this company for 10 years now, we have been getting this cheese (50,000lbs) every week since before I started there. The delivery has had an error maybe 4 times in that ten years. Even if I never checked the delivery, the inventory wouldn't be that far off.

This is not the first time the inventory has been off, this is not the first time they have asked me why. I have told them on multiple occasions why I think the inventory is off, but still every 6-8 months it still comes back around to the same stupid question.

Repeated stupidity gets on my nerves.