That's why there are still full service grocery stores. If you can't wait an extra 10-15 minutes to save a little money, go to a regular grocery store, pay a little more, and hope you get checked out quicker.
I've seen the lines in WM 3-4 people deep, went back to shop for a few other things, came back and checked out right away. But when it comes to not having enough cashiers, Wal-Mart certainly isnt alone. I've seen the same thing happen at other stores.
“I’ve seen the lines in WM 3-4 people deep, went back to shop for a few other things, came back and checked out right away.”
And thats why they aren’t concerned with making you wait.