Where do you live? I worked at Walmart when I was younger for extra cash, for about 3 months. Night shift though, but here in Vancouver we don't have people that look anything like those freaks in People of Walmart. The closest thing I've seen are obese people riding Rascal Scooters and the odd 80 yr old woman dressed like a prostitute. There was this one guy who would dress in full (really old) Football gear, helmet and all and run up and down these steps outside for his 'morning training regiment'. He was clearly mentally unstable though and would wear his gear everywhere.
We got plenty of that here. Plus a couple midgets who shop in here every Thursday. Not that there's anything wrong with that.