Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
Q: In Breaking Bad, because Mike works for Gus Fring, presumably he should be all set financially. Also Mike is apparently loyal to Gus. Why would he need a part time job as a PI for Saul Goodman on top of his multiple activities for Gu's operation? This part-time job might even be a conflict of interests. Also Mike is obviously old and not very fit - why does he want extra work? Why would Gus allow his loyal hit man do part time work on the side?
A:
Why would Mike need a part time job as a PI for Saul?