What do you mean?
I was jokingly referring to the fact that every Walmart I have ever been to is understaffed in the front, so I always end up waiting in line for 10 minutes behind Walmartians buying the most random crap you can imagine while the cashiers perform at what can only be described as a glacial pace.
*simulation stuff*
To be fair, not all of the things I mentioned above are the fault of Walmart or their simulations, but the end result is that their simulations are wrong and they have permanently lost a customer as a result - granted, I never much liked shopping there anyway, so it wasn't a difficult choice to make.