I've been to Russia now four times, and one of the most interesting and unusual retail practices in stores there is the Russian sales clerks' habit of tearing almost every sales receipt before they hand it to you or set it down on the counter (see picture above).

Supposedly, this practice goes back to the Soviet days, when most

stores had the merchandise behind counters and glass cases. To make a purchase, you would ask an employee to get the merchandise for you and prepare a sales receipt, which you take to a second employee/cashier. After you paid, you would take the receipt back to the first employee to pick up your stuff. Then that employee would tear the receipt, to finalize the transaction, and prevent customers from trying to come back and get a second item later for free.

Although no longer necessary, the "receipt-tearing" practice continues to this day at almost every retail store in Russia out of an old Soviet-era habit! Makes it a little inconvenient when you need to present receipts back in the USA for reimbusement!