On my first character I didn't know about zepplins (I had never been around when one was coming or going) so I would just run up the zep tower and then jump off. Yeah, that character only made it to level 9.
I didn't learn FA with my lock until I was 60.
I tried to swim across the ocean because I didn't know about fatigue. I figured I could just corpse hop my way across the ocean after I died the first time, but they apparently took that into account. I have a screen shot of my dead ghost somewhere.
I knew what talent points where and how to use them, but I had no idea thats what people were talking about when they asked what spec I was. I usually just changed the subject.