Possible to crash a player with /crash <player>

I have a client requesting a plugin to crash a player's game, I don't know why. I was offering plugins for free and this is his request. So I was wondering what the best way to do this would be or if it's even known to be possible? Thanks!

 

@TheWolfBadger
You can't really "crash" the client, as in a CTD (Close-To-Desktop), but you can kick-crash them using bad packets. The best way to do this is to hook into the packet channel, using something like protocol lib, and try sending an entity move packet, but say that the entities id is negative. Since ids cannot be negative, the client will crash to the main menu.

 

The client said before that he had a version in 1.8 that working by CTD, but no longer works in the versions above. So there is no way to CTD though and never has been?

 

@TheWolfBadger
Yeah, 1.8 had a ton of bugs and exploits.

You may be able to experiment with some of the packets here:
http://wiki.vg/Protocol

Try experimenting with the packets. There may be a value for one of them that may not be handled correctly and may be able to crash the system.