BBM, I wonder then if this would lead to "accident" or if it could be merged with a foul play option. To choose to run through vegetation that dense suggests "flight" to me, with someone in pursuit. Otherwise, there's nothing "short" about that shortcut, and if she was afraid at the bus stop, I would think she'd look for a more direct way home. Just thinking out loud.
OT, but the scenario is intriguing. It reminds me of a time in high school when a GF and I were walking home from a dance, and a car with a creepy dude driving seemed to be dogging us. We bolted through yards in a panic, even getting hung up on a fence we couldn't see in the dark. Comical after the fact, but truly scary in the moment. Nothing could have made me run through those dark yards if I wasn't afraid of something scarier.
This was sort of where I was going...either she was afraid of BF/F, or someone else frightened her, and her only option was to run where she shouldn't have, to get away. Certainly not the best way home, but the only foreseeable option, that turned out to be a bad one.