Her name could be Ima Klutz but not necessarily. Hand-eye coordination has to be excellent. Very organized workspace with room to work and nothing to bump into with your hands. If it’s not a task you do routinely, the muscle memory is not initially there so your hands and brain are working together slowly. Then there is the dreaded sneeze at the wrong time.
You’re working with disposable gloves for protection, not exactly armor against a needle puncture.