While working at General Dynamics Electric Boat, I worked on nuclear/radiological related projects (my undergraduate degree is in nuclear engineering). Engineers on the non-nuclear side were sometimes put on nuclear jobs and they would ask me to assist them. They always thought certain nuclear regulations didn’t apply to their “small” job that happened to be in a nuclear boundary. They assumed anything related to nuclear regulations would be an extraneous task or if they had to be completed at all, wouldn’t take long. They never scheduled enough (sometimes any) time to go through all the steps in the review process with the many different people and the project would end up on the critical path. Many of these engineers had strict schedules to adhere to so helping them stay on schedule was a challenge. I usually ended up running around the shipyard on weekends (sometimes, in the middle of a blizzard), calling in favors, and still not meeting the deadline.