So imagine realizing your finger was getting chewed on by one of these:
Trimming a plant and went one handed for a moment. Did not end well. I really was really hoping to see a finger there. You know how terrible things seem better when the outcome could have been much worse? Definitely one of those.
I rarely get shocky from an injury, but this one had me on the floor for a bit; hadn't slept well the night before and was feeling punky lousy when I woke up. Home by myself, took a few tries to get up and drive myself to the ER.
So kids, if you must trim a hedge, use both hands.