I got to what I believe to be near the end of Episode 3, where you go into the train station and zombies attack you. When you're trying to walk back away from them, I mouse over and press the wrench when I'm close enough, and it just looks at it and I die. When I tried modifying how I interacted with it, it wouldn't even work. I'm not sure if I'm doing it wrong or it's a glitch, but it's keeping me from continuing the game. I need help.