When my dad passed away, he was years... like 14 years behind... in child support.. he had been drug into court many times, and once the police went to arrest him, but by this time he was bed bound and dying and they could not transport him because of his medical condition... so they just gave his the papers and left..
My ex walked out while I was pregnant. He was never on the BC. I always just provided for my child on my own. I didn't want him to have visitations, and never broached the topic of support. My DH adopted her legally when we got married.
So, no CS, no back pay, no jail time, and thankfully, no EX headaches.
I have a good friend whos ex was put in jail about five years ago...He was pretty far behind but Im not sure how much. This summer he got put in jail and he is over 100 grand behind now. He did not even get to the cell before his Mama was up there paying to get him out. She has fought so much with child support enforcement to get any type of action taken. Its sad. He is supposed to also pay half of medical cost and provide insurance. He doesnt even do that.