Similar situation on a larger scale, party was gathering Macguffins to stop the impending abberant-based apocalypse. One of them allowed us a roll on the d10000 Wild Magic table once/week. Some party betrayal happened, and a fight broke out over the artifact. The betrayer finally grabbed it and activated it.
DM rolls. DM gets a 10000. The result is "the stars were right!" which apparently is a reference to the Cthulu mythos about the apocalypse beginning. Cue table meltdown as the DM has to improv the sky opening and the horrors descending an IRL month ahead of schedule.
spoiler
Turns out he punched in "roll 10000" into the dice bot by accident instead of "roll d10000" which gave a fixed result, but we didnt realize that till next week.
I remember idly wondering how DMs worked in Lemmy, and I was kinda shocked when I realized they aren't secure.