[1] ADD (Attention Deficit Disorder) is a bad name, but it is also the name assigned to whatever ADD is. Personally, I don't think it's a disorder of the individual so much as a mismatch between how society trains people to behave and how some people's brains work, but there we are. The effect is much the same.
[Riff] You are correct, to a point, but is it just that you are afeared that the other parties to a conversation may be ignorant of the meaning of certain words and, therefore, you 'lower' your language to the level that you surmise is acceptable?
[re: junk] My excuse for accumulating huge piles of junk is that I might want to glue some of it together into sculpture. Of course, this rarely happens, but the fact that it does happen once in a while makes it that much harder to throw any of it away. From where I'm sitting, I can count nine empty cigarette boxes (one of them an interesting little slide-drawer thing), an attractive Harrods cookie tin, and a large lump of rusty metal that I haven't any idea what it is.