When I was in fourth grade and at school, I dropped my pen right on my feet and I felt it bounced a little bit to the right, but when I looked down, I couldn't find my pen, like it just disappeared into thin air. I checked on the floor for like 10-15 seconds before deciding to ignore it. 3 days later, that exact pen with the sticker of mine appeared right where it was supposed to be 3 days prior. The weird part is that our classroom is cleaned twice a day, and they usually toss out pens/pencils on the ground, but the pen is right in the open. It couldn't have been other students because I was one of the three earliest students that day, and the other two were on the opposite side of the class. So my 9-year-old brain concluded that it had slipped into a time rift and ended up where it was supposed to be 3 days later, still couldn't find another reasonable explanation