Hello,
Free @ Curb rant is my smart-ass way of dealing with this situation.
Worn out Worn slick.
I have been trying to play nice since he broke his leg, tonight it blew up.
Although I know the crap behind it but
the audacity of his way of thinking still blows my mind. 
We went to house sit for the evening.
After about 5 hours he asked if I cared if he left (we only live a mile from the house sitting) so assuming he was going home I said I didn't care.  Homeowners came in, and that was when he said he was going to the city.  I asked why (made up crap) cut to the chase...I asked if he would be home when I got there, Approx 30 minutes later. He said yes. Needless to say he wasn't.   I tried to call several times wouldn't answer.  So as usual resorted to texting.  Our business is down because of his broken leg, we are absolutely broke financially. 
I get a few dollars from trying to sell stuff on ebay.  It gives me enough to put gas in the car to go to Dr apps and then pray I sell something else.
Anyway, I put a few dollars of gas in yesterday for Dr app.  So I text and told him I didn't have money to keep gas in the car, his 45 minute trip tonight burned the gas out.  I told him to replace it, with one his cronies...who knows.  Gone 6 hours, comes in @ 5 a.m. acts like nothing is wrong and I'm the crazy one.  Said he told me he was going.   Lots of gaslighting.  I told him he needed to go immediately, call his so called friends whoever just go. He acts like that is a surprise.  I reminded him that he was told the day after Thanksgiving to make arrangements, but because he broke his leg is why it had been delayed.
The car he went in, is not his, not mine, it's my Mother's.  I'm the one trying to keep gas in it for Dr appointments.  The Dr hasn't released him yet, because it's not healing as expected...another 4 weeks before the chance of a release.  So that means No Driving, but according to him he's  not released to go back to work.  And he didn't do anything wrong.  BS
Everything seemed quieter the last couple of weeks since he stopped with the pain meds until tonight.  I want to scream.

LC, I agree with Rob, can YOU leave?  Where can you go for support and just pack it in and never look back? 

LC, If your parents own the home and are able, can they ask that he leave?  Can you involve the police for abusive behavior?  Can you contact your local women's shelter to see if they can assist you?  I was a former crisis line worker and at the very least they can help you obtain basic services and assist you and your parents.  I'm sorry this is happening.  If you live in the US, their toll free number is 1-800-799-7233 .  
Please call and see what assistance you can get for preventing him from coming back and harming you or your parents any further. 
Keep us posted. 

That's really shitty.  I'm so sorry you're going through this.  Time to extricate yourself.

I admire you being kind to him when he's down and out.  However, it's certainly not being appreciated, and he's proven that it's not really needed since he can get around on his own and take advantage of you.  He's made his bed. Let him lie in it.  They never feel the full weight of their actions if we protect them from feeling it.  No one else would do more for him than you already have.

K