Lindsay Lohan to be back in prison?

She’s only out of prison for about a week, but she might be going back already!

Lindsay Lohan confirmed yesterday that she has tested positive for cocaine… again.

“Regrettably, I did in fact fail my most recent drug test and if I am asked I am prepared to appear before judge Fox next week as a result,” she Tweeted. “I am a work in progress, just as anyone else.”

You’d think she’d have learned something of the last time.