Sprinting through the woods, ignoring the unstable terrain, you can't deal with this. There's no way you can fight him off. You're a medic, not a combatant, and you have no idea what he's going to do if he catches you

You emerge from the woods, clambering up the rocky ledge to the train tracks. You sprint across them until you feel a tug on your shoe, stopping you in your tracks.

Your boot is stuck in the tracks, and you can see him emerging from the woods. You pull as hard as you can, but it won't budge, and now you can see a train rounding the corner of the tracks

Shit

You don't have time to untie your shoe. Either he does something, or the train does

Oh God... what do I do?