Haha, good story, I'm glad they got reunited. Agreed-it's kind of easy not to notice a mistake on the paper.

At the boarding kennel I worked at, mistakes like that happened on the occasion. I remember one time...there was a chow mix named Casey, male, right? We came into some blood in the kennel in the morning, it's nose wasn't bleeding or anything, couldn't rightfully figure out where it was coming from. A little bit of investigated work found that it was a female in heat . NOT good in kennels that are open at the top!