That title brought back memories of some really old MUDs that would let you chat escape codes (mostly meant to make colorful chats in ANSI color), and you could

That title brought back memories of some really old MUDs that would let you chat escape codes (mostly meant to make colorful chats in ANSI color), and you could chat the bell escape code to make everyone's PC beep. But it also kind of froze the computer for a second, so you could send a bunch of them and freeze everyone (including yourself).