What was the weirdest thing あなた did as a kid?
For me, it has to be what I would do in the place of hide and seek.
Mom was expecting another baby, and as a result I felt the need to enhance my hiding skills. So little, three-year-old me climbs into a jumbo suitcase laid out for a summer trip. I close the top, and lay down in there quietly, stifling giggles.
My parents searched all around the house for an hour, and were near calling the police when they heard a muffled tiny voice say, "Where am I?"
Unfortunately, my younger sister learned this and instantly made fun of me for it. To this day, she still asks "Where am I?"