More strange words

Today I read in the paper that Wesley Snipes had been sentenced to three years in jail for evading taxes.  One of his responses was that he had been "miseducated."  Exactly how does that happen? Is educated wrongly kind of an oxymoron anyway? He seems to have difficulty with accepting responsibility.

And I saw an interesting phrase on a billboard here in South Carolina.  If you buy this certain security system you will have a "twice less chance" of being burgled. I'm afraid I can't do that math.  I'm not sure what twice less is.  Twice less than what? Is that sort of like a half?

Isn't our language interesting?