I'll be honest if you wern't hurt be thankful. Not being hurt is the only goal.
As for calling someone names, whether they are on drugs or have some other problem, that isn't a good idea. And you don't have any idea, just listening to somebody telling you something doesn't make it true.
Sometimes you'll just make somebody madder and that can cause more problems.
It might have been better if you just moved away and left them alone, or if they were really abusive, contact the police.
bushi no te isshinryu