What is the greatest atrocity your party has comitted?

Recently my party did something I view as awful. I was wondering what terrible murder-hobo shit your party's have done. Players and GMs alike, I'm curious.

I'm playing a vicious and violent fighter turned religious, took a class in cleric to lock it in. Well. We're hunting Chokers. Big gangly Lil' buggers that choke you in your sleep. We've so far massacred them. We had discovered which well they were using to get into the town and the druid did druid magics to convince Blood Maze (Living murderous corn sated by blood that produces better than average corn.) to surround the well. The Blood Maze handled most of the chokers and we went in after them to finish them off.

Something, something, we've reached one of the last rooms. We encounter a baby choker. There's a pond of cave water nearby so the cleric (Not my character. The dedicated party Cleric Wilfred) decided to avoid combat by casting Aboleth's Lung on the creature. We severely underestimated the intelligence of Choker's... It couldn't breathe and just ran into the next room. We followed the baby choker and found it having CPR done one it by its concerned mother. Something akin to CPR kinda. It was trying desperately to save its child... The Cleric was going to cast Create Water aimed at its mouth to save it but fuck me if the damn rogue didn't toss an Alchemist fire at the mother and child... Killing them both slowly...