Britney Spears' parents, particularly her father Jamie, have been trying to get Britney into a mental hospital for months. Her dad suspected last summer her problems were mental and not substance abuse. Britney refused back then to get tested for bipolar disorder and is still refusing, according to TMZ:

We're told both Jamie and Lynne Spears believe Sam Lutfi, the guy who was inseparable from Brit until last week, was a prime reason she was refusing treatment. They are so mad at Lutfi they threw him out of Cedars last week.

What does Sam Lufti have to gain by Britney not being in her right mind? Besides her money and vagina. That just doesn't make sense. There's got to be another motive... Does she have a Playstation 3 or something? No... Wait! It's dirt bikes, isn't it? Yeah, it is. I knew it. Damn, I should be a detective. Hey, there's Sam Lufti. Why is he carrying around gold bars and a box of condoms? Those don't fit on a dirt bike.>