Well borrowing money isn't that bad but the worst thing is that such addicts sell their household things and belongings of their siblings and other family members.
It's not bad if it's put into good use. But if it's used for gambling, that's how the worse part starts. And this isn't just a tale and it is really happening. Gamblers selling their stuff to fund their gambling addiction seems to be a common thing with most of the addicted ones.