This past Sunday was "family day" in VH1's Celebrity Rehab.
Astonishingly, Michael Lohan's stood him up in that piece.
The drama began when MiLo "wanted Lindsay, Ali, and the rest of the family to come for family day," says a source. "Michael even wanted Dina to come."
"They all refused, they don't want to appear on camera in that setting, period."
"Michael grew very upset. Emotions were very raw for him. Soon, thereafter, all hell broke out between other patients and families," the insider said.
Viewers will be in for "quite a shock when it airs," the source says.
Dr. Drew "handled the mayhem with pure professionalism, as he always does," despite all he has on his plate (the Michaele Salahi debacle, etc).
Celebrity Rehab 5 is set to premiere in May on VH1. As for what brought MiLo to the show? Anger issues. Yes, he's addicted to rage. And fame.
[Photos: Fame Pictures]