Why is plumbing so fragile?

Seems like every time I try to fix the plumbing I end up fixing more than what I was planning. Other bits start to leak and I end up going to the plumbing supply. Even if I didn’t need any more parts to start out with, I end up replacing things. Fortunately, I’ve gotten better at going to the store in the middle of the day rather than right before they close, so I can buy more parts if necessary.

It’s a good thing to know, since who knows where one’s career path will lead them? Custodian. That sound pretty good right about now.