A little context: After having tracked down our campaign’s villain we discovered he was hiding inside of an abandoned dwarven fortress wich he was renovating and fortifying with the aid of all the local bandits (who he had unified to pursue his goal) We ended up laying a little siege to the fortress, and after loosing almost all of our friendly NPCs (30 rangers) we finaly made it inside. After goung through some rooms…
DM: On the right side of the hallway you see a closed wooden door.
Igan (Paladin): I kick it open (Rolls Strength and gets a high enough roll to break the door into pieces.
DM: You see three men. Two of them are talking in one corner and the other is sitting in a table on the oposite one, cutting some cheese. They quickly turn their heads.
Igan: *Charges against the cheese-cutting one, rolls a nat 1*
DM: You get right next to the guy but in your impetus, you hit the wall instead of him.
Gnome Cleric (Me, OOC): Don’t worry Igan, I’ll save you! I run to the cheese guy and attack with my dagger.
*I got a nat 20*
DM: You rush to the guy, pull his head and thrust your dagger into his throat, he tries to say something but he drowns in his own blood. The other two guys scream terrified and cover themselves, shaking in fear.
One of the guys: No! You killed John! How could you?!
Me (OOC): Wait. They don’t attack?
DM: Nope, they don’t have any weapons, nor armor of any kind.
Me: But you said they were three guards.
DM: I said three GUYS! I never mentioned them looking like fighters.
*Turns out those three were just carpenters hired by the villain to fix the fortess’ doors, they had nothing to do with him or the bandits and didn’t even know what was going on with the villain’s plan. Actually, the one I so gorely killed was an incredibly nice guy, loved by everyone, who had two daughters and whose wife had recently died. Also, he baked the tastiest cheesecakes, which everyone loved, including the villain… I felt like a monster*