Witness the Stupid

Can't use a picture - don't want to infringe on a copyright. But here's a link so you can follow along. Here's another one.
I had to evict one of my roommates recently for:

• Moving his girlfriend into the house without mentioning it to me & the other roommate (when I confronted him about this he blamed her and said "I told her to keep it low pro, but she didn't respect it").
  
• Not paying rent on time.
  
• Not paying bills on time.
  
• Not keeping the place clean.
  
• Using stuff (my computer, other people's food) without asking.
• Making the other roommate miserable with his noise and lazy, filthy personal habits.
• Any number of other awesome stuff that you can expect from a roommate that sucks, such as: buying porn (titles: Big City Booty and Asses Extreme II) on the cable PPV and leaving me with the bill. I already paid him his full deposit, so that's sunk cost at this point. Sweet.
• Special Bonus: When I gave him notice his mom wanted to come and talk to me about it. She was convinced that he was getting a raw deal. It couldn't possibly be his fault that he sucks at life.
  

Though the moveout was contentious, he was unable to get all of his stuff moved out by the deadline. I mean, he only had 30 days notice and he wasn't working for two weeks during that time so when would he have time to find a place? No idea. He was really busy sitting on the couch sending txt msgs and watching MTV Jamz all day.

When it finally did come time for him to move out he couldn't move all his stuff and left some crap in the garage. I told him AND made him sign a paper that said he got his deposit back and that I would discard his stuff after a week. Two weeks later I hadn't heard from him (except for the inflated cable bill) so I threw it out. He called yesterday and now he's all upset. It's my fault for, umm... doing what I said I was going to do? Not sure. Actual conversation:

The Idiot: "I had some of that stuff since I was a kid!"
me: "I told you I was going to throw it away if I didn't hear from you."
The Idiot: "I'm calling you now!"
me: "I told you that you had a week. After 2 weeks I threw it out. You did not contact me to let me know that you wanted it."
The Idiot: "Man why did you have to throw it out?"
me: "I told you I was going to throw it away if I didn't hear from you..."

Damn, I don't know what I was thinking. I only gave the guy verbal and written notice. I should have done more for him, like stored his stuff for free indefinitely. After all, he was such a great roommate and person. Wait, what?