Do not disrupt the skin surface. Pulling a splinter out is fine; digging a splinter out is not.
When you have visitors, give a brief induction which includes the whereabouts of the first aid kit and who can administer first aid.
Accident reports must be kept for three years.
Do not forget to arrange for clean-up and restocking after an accident. Use a clinical waste bag (to be incinerated) for contaminated materials.
After an accident, check that other people are okay, and try to keep aware of how you are feeling.
You may have to inform next of kin, after a serious accident.