Did you have a jack-in-the-box when you were a toddler? I didn’t; but Aunt Louise, my father’s aunt, did. I always played with it when we went to see her. She had no children of her own, but kept a lot of kid stuff handy.
Here we have assorted babies and toddlers confronting a jack-in-the-box. The box gets mixed reviews: some kiddies are startled, but then laugh; some are scared; some are simply amazed; and some are delighted.
I couldn’t find a video showing the reactions of college students to a jack-in-the-box.