I don’t work in a grocery store or retail anymore but this is what I used to do with rude customers. Feel free to share yours too!
-
When ringing groceries, key in all fruit as organic to charge them more.
-
When weighing produce, put your thumb on the scale and push down a bit to make it weigh a lot more.
-
When I did Amazon returns, rude customers always got their return thrown out or the return label swapped so they can’t get their refund.
It’s not much but it helped me get my revenge.