We used to have a particularly psychotic teacher at our Primary school called Mr Jones. One thing I remember about him is that he was the only person I ever heard use the word Gadzooks!
According to information I scraped of the inter-web, the word is an 18th C. alteration of Gods Hooks, or the holes in Christs arms from being cricified. Nice...
There is more Gadzooks info here
by JC