anko3614: Eat Ice and Take it Easy!!
Summary by platina:
As Anon heads home from his part-time job at an ice cream shop, he's accosted by a scum yukkuri family demanding ice
Instead, he brings out some of the dry ice the shop provides for customers who buy ice cream to take home. He shoves a piece into each yukkuri's mouth and staples and tapes its mouth shut. The yukkuris start to get diarrhea, so he plugs their anyarus with sticks. With the gas trapped inside, the yukkuris swell up like balloons. The little ones explode in front of their parents. Mother Reimu panics and hops into the street, where she is run over by a motorcyclist. Lastly, Anon watches the father Marisa grovel before him until she finally bursts.
However, when it's all over, the ice cream shop owner makes Anon clean up the bean paste all over the parking lot, and Anon's clothes are spattered with it, too. The author offers that as a lesson to the readers--if you're going to abuse yukkuris with dry ice, do it in a place that can get dirty.
*Note: In Japanese, people frequently refer to ice cream as "aisu" for short. The yukkuris ask for "aisu," and Anon twists their request and gives them "dorai aisu" instead of "aisu kuriimu."