Darkness? Yeah, usually this time of year it gets dark sooner. But that's no excuse. Your dog still needs exercise, CLEARLY. What's wrong with going for a walk when it's dark? I just got back from one. It's pitch black AND raining. The dogs don't care. I brought an umbrella, so I don't either.

Listen, it's okay, Collin! Admitting fears is good. If you're afraid of the dark, buy a flashlight!