I inherited a nightmare storage closet

Long story short, I’m a high school science/math teacher in a small town. I’m only technically trained in teaching biology, so chemistry and math are a challenge to teach but I get through it. I inherited a VERY organized and safe chemical room at the high school.

I started a second job at our local college instructing an introductory Biology lab. Was looking for some IKI stain for a lab yesterday and found the actual chemical closet.

Correct me if I’m wrong but…..this is dangerous right? I was scared to even touch or move anything.