Walgreens' CEO talked about the flip side of investing in increased security on a recent earnings call.

Walgreens has come to find out that both shoplifters and customers are turned off when items are locked away. In an earnings call on Tuesday, the drug store’s CEO Tim Wentworth blamed declining sales on locked up items: “When you lock things up

The top executive at Walgreens lamented the loss of sales from putting items like toothpaste behind lock and key to crack down on rampant shoplifting that has plagued pharmacy chains around the country.