I was thinking this morning, an interesting thread might be about unusual and unexpected occurrences that happened during a field trip. A couple come to my mind. A month prior to a field trip to the science center, a parent had discussed with me how she was surprised with all her daughter was learning about the subject of gravity, some of which she was unaware of. Anyway, during a lesson on space at the science center, the presenter made a comment concerning gravity and the student suddenly blurted out, "See Mom! I told you it was true!" (Her mother and I got a good chuckle over it)! Another that comes to my mind, our bus suddenly slowed down on a street. Why? There was an army tank in front of us. We followed it for a couple of blocks.