For this achievement, you'll have to get a kleiner to the corner shown in the image below without using the physgun.




spawn a kliener ragdoll, set him like this, freeze all of his body parts and make him a statue.


open the spawnmenu, select the slider tool and set it to max.


with the slider tool, first select kliener then the corner you want him to go.


unfreeze kliener and see the magic happen! if kliener starts having explosive LIVErrhea, you should earn the achievement! :3