Shadami: I have that frequently too. When you are trying to find the right word (usually something incredibly simple or a word everyone knows) and it is on the tip of your tongue but your brain can't coordinate everything enough to actually verbalize it. I like to call it "the thing with the thing" syndrome.

Poet: Haha, see I am the opposite. Hard sciences and mathmatics were definitely a bit of a weak point for me at school. I was the kid trying to put a square peg in a round hole.