Something comes home to roost
Definition 1 of 1
Pro Tip 1/3Negative Connotation
This phrase suggests negative outcomes or problems arising from one's past actions. 
After years of neglecting his health, his bad habits finally came home to roost.
Pro Tip 2/3Metaphorical Imagery
Imagine chickens returning to the coop at night; similar to how one's actions eventually return. 
You can't escape the consequences forever; they will come home to roost.
Pro Tip 3/3Accountability Emphasis
It emphasizes the inevitability of facing the results of your own actions. 
He cheated during the exams, and it came home to roost when he failed his course.