Lindsay was stunned when she got 120 days in jail

When Judge Stephanie Sautner reduced Lindsay Lohans felony theft charge to a misdemeanor at around 2:00 on Friday afternoon, Lindsay was on top of the world, no doubt thinking she had beaten the system once again and nothing could ever take her down.

About 30 minutes later she got taken down, when Judge Sautner ruled that Lindsay had violated her probation and sentenced her to 120 days in jail and 480 hours of community service (360 in a womens shelter and 120 in a morgue). If this math is consistent, Lindsay will likely end up serving about 24 days in jail, 6 more than she would have served if she had taken a plea. She's expected to appeal this decision, and for now she's out on $75,000 bail.

But what can you really expect when you show nothing but contempt for the court, repeatedly break the law and violate your probation? In Lindsays case you expect to go home like nothing ever happened.

Sources close to Lindsay tell us she was under the impression she'd be going home after the hearing ... and was "blindsided" when she got sentenced. We're told Lindsay described the situation as "ridiculous" and "f**ked up."

"Blindsided" despite the fact that she was warned that, "Judge Sautner would very, very likely sentence Lindsay to jail, ON THE SPOT, for the probation violation."

But why is all this happening? Is it because of Lindsays 4-year crime spree? Detective Freckles is on the case!

Lindsay Lohan believes prosecutor Danette Meyers is on a "witch hunt" against her ... Lindsay believes she's become a living, breathing press release for Meyers, who is running for L.A. County District Attorney.

Yeah that must be it. That's what I was thinking too. How is Lindsay supposed to protect herself in a situation like this? All she can really do now is hope that the next time she steals something or get's a DUI, that she gets a prosecutor who isn't all uptight, unlike this Meyers, who is being a complete cunt for no reason whatsoever.