Knives, slicers and broken glassware
Knife work at pace, cleaning slicers and mandolines, knives loose in sinks. Cuts also come from handling broken glass and crockery and from blades left point-up in dishwasher baskets. The serious injuries don't happen during prep — they happen during cleaning. That's when the guard's off and a hand is near the blade, and a slicer still able to start is how fingers get lost. That's the whole reason for isolating and locking out before cleaning: not because the machine is unusually dangerous in use, but because cleaning is the one moment its safeguards are down.
This is one hazard. Your register is the set that applies to you — under 20 questions, about five minutes, free.