That time Piss Jug Man nearly ended my DnD campaign

Okay this is gonna sound like the most schizo shit imaginable and a little long but.

One day our cleric couldn't make it to a session, and my other players requested I write a side quest for them to do since they still wanted to play despite being unable to progress the main story without the cleric.

One player in particular was VERY adamant about facing the mascot of Celina 52 Truck Stop, "Piss Jug Man", pictured here

A bit of info about Piss Jug Man: He is a mascot created to promote truckers disposing of their piss bottles properly in trash cans rather than throwing them on the side of the road.

So I was like "You know what? Who am I to deny my dear players their desires" And decided to write an encounter with him inside a small diner called "Waffle Manor".

It was indeed a waffle house, as the players stepped in a barbarian and a warlock were having a deadly battle inside but they calmed down after the diner's owner dispelled their magic items.

The players had a chat with the extremely drunk customers, and in the middle of their chat the warlock decided he has to use the bathroom.

Some time pass, the warlock did not come out of the bathroom. Ignoring this, the barbarian also went to the bathroom to use it.

Time passes, the barbarian is nowhere to be seen either.

The party notifies the owner of the establishment about the fact that those gentlemen went in the bathroom and never came out. The owner scoffs the players' worry off and goes in the bathroom, and he does not come out either.

The party decides to investigate themselves, but as our artificer opens the door he is instantly blasted by a beam of piss.

Piss Jug Man emerges from the bathroom with 3 slimes behind him.

Now here's a little fun fact: I am an idiot. And designed this encounter with "oh yeah our cleric can heal them so it wont be that bad" in mind. Completely forgetting the fact that this whole encounter was made because our cleric won't be there!

The combat mechanics were simple. Every time it's Piss Jug Man's turn, he would spawn slime minions, respawn previously killed slime minions and copy one spell the players used within that turn order. With the cleric this could've been fine since the slimes are all really brittle and the party just had to sustain. But we don't have the cleric so we cant sustain!

Also the way he copies the spells is that he gathers the piss spilled around the bathroom and uses that to copy it. So imagine the players' shock when our artificer casts lightning bolt on him, then next turn he turns to him, holds his hand out as piss around fly to his hand and suddenly a beam of piss comes out dealing 8d6 damage. He also rolled really high on damage so we had to punctuate how that looked to others with Trunks getting his shit rocked

The players were immensely intimidated by the Piss Jug Man and thought "okay we can't possibly kill him, maybe if we unscrew his cap we'll win"

I did not plan this at all?? But was like "haha yeah, good eye! If one of you grabs him then the other can unscrew the cap. Do it 3 times and you win"

This is hard since it means our barbarian has to hold him, our artificer has to unscrew the cap and our ranger is alone fending off all the slimes.

They unscrewed twice but finally our barbarian went down. The artificer was at like 5 hp and our ranger was completely surrounded as Piss Jug Man got his turn back and respawned all his slimes.

All hope was lost, then the ranger said "can I aim for the cap to unscrew it?

I told him to go for it. But he had -2 to the roll because he was aiming for something specific and he had to roll above a certain damage to get it.

By some divine miracle, he rolled well both on his attack and damage. The cap came off and the battle came to an end as Piss Jug Man collapsed into an empty costume on the floor.

And from within emerged the Waffle Manor's owner. When questioned about his motives, he said he wanted to teach those damn customers a lesson about using the toilet properly, pointing at the bathroom they were battling in as it's completely covered in piss from drunk people missing the target. And he could have gotten away with it too if it weren't for the meddling party!

When questioned about the missing customers, he said he put them in the hole underneath the toilet. The players lift the toilet seat(a wooden board with a hole cut on it) and see the customers were in fact, inside.

And the cherry on top is that there was not a single drop of pee inside the toilet.

This was the hardest encounter my players faced until near the end of the campaign, and first real TPK threat we ever had.

Also the fact that my players' hardest encounter was in a Waffle House of all places fits so well too