While this won't work with a laptop, why not put your watch and cellphone and other valuables in your computer bag/backpack before you get in line? That way they aren't out in the open for others to see and take. I put everything in my bag before I get in line, not only does it mean that my valuables aren't floating aroung, but it also allows me to clear the x-ray counter quickly, go to a quiet and uncongested spot, and then put everything back to normal.