It's wrong to judge a person by their significant other.
It is John's first day of work at his new job.
John wants to get to know his co-workers.
John introduces himself to another co-worker after already having an unpleasant run in with their spouse.
John dismisses a co-worker after they explain that their spouse likes a sports team John loathes.
John finds out that the co-worker shares many of his interests.
John gets off on the wrong foot with his new co-worker and will have to spend months building up a relationship.