Found this on accident while trying to create a funny walk animation. Crashes players around me, but I haven't tested the radius. I use an alienware laptop which come with a program where you can configure keyboard lighting, and macros etc (alienware command center), and I made a macro that spams W super fast. After testing it on offline mode for a few minutes, I noticed it crashed my game every once and a while. Then I took it to the server I play on and showed my friends the funny walk animation and I said to them "Hey wanna see something funny I can do? It crashed my game sometimes though" and then I did the macro. It crashed my game which wasn't surprising but then my friends said all their games crashed too, the whole client.