That makes sense

stick inception.

stick-ception.

In the us and europe when you buy things at the market you put all of the things you want to buy on the conveyor belt. To keep yours and the next persons things apart the stores provide spacers so that your things wont get mixed up with another customers'

Are you telling me not everyone has these? But how does the cashier know when the other customers groceries end and another start?

As far as i understand it, granted it's limited to only my experiences, converyor belt cashiering is a predominately a western thing.