I have a friend whose father is the business manager of his local union...and my friend is NOT a Longshoreman, he's an Operating Engineer. Becoming a Longshoreman is not a job you can just "walk into". There are many other people who have been waiting to get on full-time, so you'd probably have to spend quite a bit of time on the "part-time" list working whenever they need extra people before you'd have a chance at working full time. Many people spend years waiting... The money is good, the benefits are excellent, and while the work can be physically demanding, it's still considered to be a highly desirable job.