Here's a video of this bug in action. It's devastating when it happens to you against an Earth user because they can usually follow it up with huge combos.
Certain individuals run faster than others. I literally can't chase people, especially on bigger maps, because they Usain Bolt out of there. Even in straight lines.
https://streamable.com/a5h4i
The most dangerous ninjas are the bears that reside in the Dark Forests. They dice up genin with their senbon-lined paws and feast on them with their mouths full of kunai.