There is a former addict in my family with whom I have no trust in. They are overall sober but still have anger/hatred towards others. They have shared and continue to share with me all their negative opinions on things, people, and they way things work around them. I've also heard conninving comments about plans to sabbotage people though I'm not sure they've ever been followed through on. I just don't trust this person but even though they are a part of my family, I have fun with them overall minus their bad attitude. How would you deal with this?
Example: I left them borrow something of mine for 24 hours and it comes back in worse shape than it was in. When I questioned it, they got all defensive and accused me of blaming them for the damage.