We got Rocky from the local animal shelter and he had belonged to a "hoarder". He shows permanant signs of damage sort of like PTSD. He has issues, but we love him dearly. I feel fortunate to know how he began his life. It was difficult the first year because he had constant bad diarrhea from eating objects. I'm guessing he learned that habit from starvation as a kitten.
He is much better now but still has compulsions to chew on odd things so we have to watch him like a baby and "baby-proof" the house.
At least these things are now in the news so we are more aware of the potential situations.