LiLo's parents come to blows before family therapy session

Washington, June 1 (ANI): Just when it appeared that Lindsay Lohan might get both her parents in the same room for a family therapy session, mum Dina blew it at a TV show.

In a wild (and typical) scene, Dina refused to take a urine drug test, fought bitterly with Michael Lohan and ended up asking for security after the taping of the TV show, Radar Online reported.

Dina and Michael taped a new show called The Test and both were asked to take lie detector tests and urine tests as they "worked out" (read: rehashed) their decades of problems with each other.

Michael took both tests but Dina didn't.

Things got so heated between the divorced couple on the TV set that Dina asked for security at show's end to escort her out.

Both were scheduled to sit down in the same room with Lindsay this weekend at the Betty Ford Center for family therapy. (ANI)