When I was working as a clerk at a sporting-goods store, a woman came up to my register with a package of white athletic socks. "Will you open this up so I can see how the socks feel?" she asked.
Reluctantly I tore open the package, and she scrutinized the merchandise. She handed me the package saying, "I'll take them."
Relieved, I started to ring her up, until she interrupted me: "Can I have another pack? This one's been opened."