Ralph,

   Most incidents  I had investigated resulted from students being in the hurry, tired or not mechanically inclined (I am one).  Glass  breaking and hurting people seemed to be prominent .  

Our students used pipets  with fritted glass end  which can break right into their eyes if they don't wear safety glasses. I have given poly coated gloves to wear when doing work with glass pipets or tubes.

Open toes shoes had resulted in small cut from fallen bottles or glass pieces caught in carpets.

 A student had left a beaker with water (no hazard here)  to heat up on the burner without stirrer and went to take a phone call in the hallway. The beaker overheated. The water dried out. The beaker broke hurting someone working on the other side of the bench.

 A  postdoc shaking a mixture in a separatory funnel near a sink. It slipped out of his hand, broke at the edge of the sink and spilled all the solvent on himself and cut his leg at the same time.  Thus, the much  needed use of PPE at all time.

  Happy 4^th .