Total BS. That elephant knew what it was doing, and it wasn't an accident. If the vet "fell" it probably was because he was knocked down.
True. Elephants are notoriously careful with their feet. I talked to an elephant handler so years ago and he told me that they aren’t afraid of mice but having small things moving around where they might step makes them nervous.
One of his “tricks” was to have the elephant step on an egg without breaking it. He said they gently feel for it and don’t put any real pressure on it.