Night runs aren't the best

3 miles intended, as per the book, probably ran 2.75. Had to run after work, so I was running at night. Decided to run up to the park and back twice, with at least five streets going sideways included. The loop makes 2 miles exactly. On the second uphill, though, I began passing gas really bad and could tell I needed to get home and go to the bathroom, so I cut the run short. I KNEW I should've been patient and gone to the bathroom before the run! Exertion: not too bad. Maybe a five on a 1-10 scale. Summary: an OK run.