This takes place in the scene where Dwight is handing everyone their equipment to kill the ghost. After Dwight has unloaded the goggles and laser guns from the locker, you'll notice that he leaves one pair of goggles in their. The camera switches off to Cindy and everyone for a second, and when it goes back to Dwight, the goggles are gone. After this, each time the camera switches on and off from Dwight to Cindy and her friends, the equipment on the shelf above where the goggles and guns were changes each time.