A shady man, a rescue story, and normal ball python head wobble.

[TheDragonSteps]

I went on to craigslist today and saw that someone was selling ALL of their ball pythons and supplies. It looked like a yard sale post but with snakes. What caught my eye was that there was one listed as a 2011 male, normal het albino with neurological problems. I was curious so I emailed the guy about the price for that one and what was wrong with him. He said he had really bad head wobble, worse than most spider morphs, and that he was a biter. The way that the guy was acting in the emails made me believe that I shouldn't exactly trust him. I suspected that he was mistreating the snakes he had when he got defensive over me asking if I could meet him at his house to see the snakes. I knew I had to rescue that snake with the neurological problems. He was the only snake that didn't have a price attached to him and I figured no one would want him considering his issues. So I agreed to meet this guy at a local store, pay the $20 he was asking for the snake, and leave. By the end of the transaction, he still refused to give me a name or a phone number. All I had was email contact (which he used an anonymous craigslist email to communicate with). Talk about shady. He also told me that the snake was very aggressive, that he would bite you even while he was balled up. He said that he wouldn't bite now because he had recently eaten 2 mice and was full. This poor snake was all balled up tight and flinched at the slightest touch. I knew I had my work cut out for me. But within 15 minutes of holding him he was out and about and extremely friendly. He stunk so bad of urine, smoke, and other things, that I even gave him a bath, with no complaints (although he did poop while I soaked him >.>). He does have a slight head wobble but not as bad as some I've seen in Youtube videos. I emailed the guy back and told him that I didn't see how he was a biter at all and that his head wobble was slight. He assured me that he bit him several times, was very aggressive, and that he would get aggressive when he wasn't full. This snake is one of the sweetest I've had. I find it hard to believe that his personality would change that much. That's what makes me believe that this guy was mistreating the snake. What surprises me is that a normal has head wobble. Isn't that only common with spider morphs? Is there any cure for? Is he in pain? Can he live as long as ball pythons without it? Any help is appreciated. Also, do you think my suspicions of mistreatment are justified? I don't want to overreact on it but it just sounded too shady to me. Let me know your thoughts. Thanks.