one time for a dnd session only 2 people showed up so the dm decided to tease us with the boss battle by having a hole in the wall showing him

other guy says “i want to see if my sword will break the wall down”

dm says “okay… roll”

dude rolls a nat 20 and dm has no choice but to say the sword destroyed the wall

we got to the boss battle early and to help our characters not die the dm took control of a character

on dms turn he rolls a nat 20 and deals massive damage to the boss, we defeat it shortly thereafter

he was so flabbergasted that his own boss battle was beaten by himself 😂