1. It's hot work in the plant - you get used to it but it's not a place you drop in and out of when you want.
2. It's a chemical manufacturing plant. You have to work carefully here and follow the rules. You can't come in half-awake and expect to be treated like you're a superstar.
3. They also random test for drugs and background check every applicant. If that's gonna be a problem, there's no point in applying.