That's being one dimensional. Usually those types are also inflexible in their opinions. I have many outside interests. Sculpting wood, painting, landscaping, making new friends, and reading great books that seriously open my eyes to things I never thought about. Yes, I worked last year for a plumber like this. A good man but sometimes I had to beg him to reconsider stuff when I helped him landscape a backyard. I walked off that job because he wanted me to install drainage for the yard improperly. He's a great plumber but an idiot at landscaping.