Toby Melville / Reuters

Reading While Eating for February 28: On Second Thought

Tuesday’s links think twice about life’s mundane details — and dubious Internet hoaxes.

Customer Paying at Market

Are Grocery Receipts a Health Hazard?

One of the things we do while shopping without even thinking about it is wait for a cash register receipt after we’ve made our purchase. But new research is showing even a receipt can pose a health hazard.