The folks that run Canada’s largest grocery store chain – Loblaw Companies –are apparently just learning about pest control. They are also learning that consumers can take pictures with their cell phones and can actually use those phones to call local health types.

The Calgary Herald reports that public complaints prompted health inspectors to visit the Westwinds location of the Real Canadian Superstore 17 times in just over a year before it was ordered closed Tuesday after the discovery of live mice, rodent feces and gnawed packaging.

Rick Holley, a microbiology professor in the University of Manitoba’s department of food science, believes shoppers have every reason to be squeamish at the thought of mice scampering over produce or gnawing on potato chip bags.

"Mice are vectors for salmonella. They carry it and shed it not unlike chicken, cattle or hogs.”

Doug Powell, an associate professor of food safety at Kansas State University, said,

"People might think, ‘What’s the big deal about a little mouse poop?’ But it’s an indicator there could be a whole lot else going on.”

The incident comes weeks after a Loblaws store in Toronto — part of the same company as the Superstore chain — was shut down after a "heavy infestation"of mice and rats, including droppings on sandwich counters, was found.

Company spokeswoman Inge van den Berg said the two occurrences have prompted the store to revamp its pest control procedures.