Cramer was incredulous Friday that anyone should be surprised that Moody’s Investors Service changed the outlook of 13 Italian banks to ‘negative’ from ‘stable.’

“If you own those banks, if you own companies that have insurance on those banks, if you have money funds that have those banks, will you just stop being so brain dead and sell already?” Cramer said. “Why is everyone so surprised? What do you need to know about Europe?”