Use common sense. There are no unexpected dangers in the microfabrication lab, but do not touch anything unless you are sure you understand it. Wear safety glasses when using the spinner. Safety glasses are available in a box to the right of the spinner. The spinner sometimes breaks silicon wafers.
Silicon chips are about as dangerous as broken glass.
Wear safety glasses when using the spinner to protect your eyes from flying chips. It is a good habit to always wear safety glasses in the microfabrication labs, taking them off only to use a microscope. This is a rule for everyone in a room when someone in that room is doing spin, develop, etch, or strip. Aprons are available to protect your clothing. A drop of photoresist may splash onto your clothing and make a permanent spot.