I use wooden toothpicks and wood glue to fill in the hole, then put the screw back in. Works like a charm everytime! We use this trick often actually. Doors, furniture, windows, handrails, cabinets, I think my house might fall apart at some point.
Force 4 days on earth; they already exist. 4 horsemen have 4 days in only 1 earth rotation. 4 angles stood on 4 corners. 4 corners rotate to 16 corners which equal to 4 corner days.