premise: On Tuesday , just as I was leaving for my road trip , I heard an almighty rumbling noise outside my house . I ca n't really describe how loud this rumbling was ; it was , like , really , really , really loud . I looked over the balcony and saw what appeared to be an entire regiment of tanks crawling down the hill behind our house . Sadly , I was on the run and was unable to grab any footage of it . Why might I have been on the run for the road trip ?
hypothesis: I might have gotten started on the road trip earlier than I expected .