LE has made it pretty clear that they don't believe that Misty was @ the trailer, the whole night. O.k., let's say she wasn't. She may not have even been the babysitter. Maybe Ron went to work, thinking his mom was gonna babysit, or she was gonna get Misty. Maybe Tommy knew that the kids were home alone & jumped @ an opportunity to raid their stash.(Misty may have been partying with him). Maybe Haleigh woke up, & something happened. Ron gets home & finds Haleigh. He knows he & his mom are partly responsible, because they left the kids alone with his stash. He calls Teresa, rounds up a drugged up Misty, & gets Timmy & his crew to help out. Misty has her 'dream' of 3-4 men. They take Haleigh somewhere. just another theory, but it does make them all culpable.