Regan *major spoilers*

I feel that almost if not all of the bad things that happened were her fault...short of the creatures wiping out man kind anyway.

The first and most obvious, giving her bro the rocket thus getting him killed.

Second if she would not have run off when Lee and Marcus had gone fishing, Evelyn would not have gone into labor all alone and the deadly chain of events may not have unfolded as they did. She was told specifically that she was to stay and help her Mom.

Third, if she would have just left that damn hearing aid alone the creature at the truck would have run off and Lee would be alive. Granted I know she didn't realize that her hearing aid had that affect on the creatures but but still...