Booting your computer into Safe Mode implies that there's also a Dangerous Mode
Hold down The Forbidden Key on your keyboard during startup in order to boot to Dangerous Mode
@Shrigglepuss are we even allowed to press the forbidden key?
@Shrigglepuss (the return key implies the existence of a key of no return)

@Shrigglepuss I'm afraid your shitpost inspired shitcode (because I was bored and had a free 10 minutes before lunch)

https://pastes.io/net4jqnui2

M-x dangerous-mode for dangerous editing in #emacs :)

(deletes the file you're currently looking at so the only version exists inside your editor, failure to turn it off, or save before you quit will lose the contents)

@morix Oh shit what have I started 

@Shrigglepuss a shitnami of terrible Friday tooting?

Also I briefly poked around xmodmap on unix to see if there was a standard key called "Forbidden", I couldn't find one but I did find "VoidSymbol" and yeah, wondering if I can make a key output that, then have something open a comforting void into nothingness to watch during dull meetings or something. 🤔

@morix I'm curious what the void key was made for
@morix Oh wait! It's probs for payment terminals and stuff right? To void transactions etc?
@Shrigglepuss oh shit I hadn't thought of that possibility! Could be used for that I guess if you had something watching for it and wanted to be sure you definitely sent a keycode that was unlike anything else.

@Shrigglepuss I'm unsure, I found it on a list (https://wiki.linuxquestions.org/wiki/List_of_keysyms) where it states it "Does nothing" so I wonder if its a NOP key? I assumed it was inserting some sort of mathmatical symbol of some kind? Or maybe it originally made some horizontal or vertical space on a terminal?

Had a quick search to try and find a keyboard that generated it and drew a blank. Maybe it is just a "do nothing" test key code?