Enema failure, colon puncture, rupture >>>> COLOSTOMY.
Play safely boys and girls. Watch the volume and pressure you use. DON'T force hoses and tubes.
You could end up like this fellow. Be advised, his stoma was PRE-CLEANED for the video and his surgery to make the stoma was very nicely performed to textbook specifications. Normally there would be loose feces there and sometimes while changing the wafer and bag the bowels decide to move so you end up defecating on yourself. His stoma is well healed. If this was early on after the colostomy, there would also be bleeding and irritated skin. While your at it, be sure to note the length of his midline surgical scar from the navel to below the waistline of his under pants.
https://www.youtube.com/watch?v=Zh4dBqUybwM