Purse-snatching is still a concern at the Cobble Hill Trader Joe’s, as DNAinfo reports. It’s gotten so bad, police are doing stings now — when they left an open bag with cash in it lying around, sure enough, someone took the money. So basically, if you’re stocking up on the last of the kosher chocolate chips, hold on tight to your wallets and cell phones, everyone. [DNAinfo]