Theft from unmanned checkouts has more than doubled over the past four years, according to a study cited by The Times newspaper, raising questions about viability of the devices in some stores in Britain.
And opting for checkouts on the left or queuing behind shoppers with a trolley could also help cut down the amount of time waiting in line.
They took a whopping 75% fewer snack items to the checkouts than those who received the control flier, which did not have the health-related terms on it.
