Having a son with a disability helps makes Walter White a more sympathetic character. There's no story line that shows Walt Jr. going through the things that you go through as a teenager with a disability. It's always his relationship to other characters. That was my issue with it.
Your prospective employer, or the person you have a crush on, or the person you want to talk to. You're judging yourself, you know, thinking about your listener. You're not thinking about what you're saying. And that same thing happens when you write.