Only people with seniority can work M-F during business hours. Otherwise you are stuck working nights, weekends, overnight, or early morning hours (4 or 5 am). You are looked down on if you can't work overtime every day and it affects your ability to get a raise, if you get one at all. Every department is so short staffed people are miserable and praying to get through the day. Management does not take concerns seriously. Sometimes you are left alone in the lab which is a safety hazard.