SGlass

1. This could have offered a clue to why he's a bad journalist because he most likely made this up. You could easily make up an interview and pretend you are a psychologist. When fake checking sometimes you have to look at your notes because the facts aren't anywhere else. He could have made these notes up so that his story could be fact checked right.
2. This could be a clue that he is a bad journalist because your editor should always stand up to you and that he can get away with everything. They should always have your back knowing whats going to happen next. Knowing that you will have someone on your side will make it that much easier to make up a story.
3. Knowing that glass will do anything to make his parents or anyone happy means that he would even lie. Clearly peoples happiness is very important to him and his parents could have been the start to a lying streak. All he does is lie and it seems to make others happy.  I am sure his parents are proud and maybe thats why he continued.
4. When he offers to resign about a minor detail maybe he is starting to think that they are getting on to him. And that he should quit before they find another things he's lied about.  This could have been his first attempt to cover his tracks. Glass might be thinking about how much he's messed up.
5. Glass is trying to be the tough guy. When he is yelling at the intern that oohing slides he is trying to show that he thinks it wrong. If people think hat he believes its the wrong thing to do then they will think that he would never do something like that. This would therefore gives him some trusty friends.