There’s a widely held misconception that customer service used to be perfect “back when,” and every retail transaction was straight out of a 1960s sitcom. The fact is that customers and store employees have been going at each other since the first paleolithic entrepreneur tried to upsell his neighbor on a thrashing stick to go with his bludgeoning stone. But now we all get to see and hear about these retail rows and foodservice fisticuffs — and companies are often compelled to apologize for them — thanks to social media. [More]