How to lock down a laptop to a table with LAlarm laptop alarm

How to lock down a laptop to a table with LAlarm laptop alarm: "The following procedure locks down a laptop to a table or other immobile object. It requires 1) a USB flash drive and 2) a neck strap (or similar material), which will be used to fasten to the USB flash drive one end and ties around a table leg or other immobile object the other end. It is useful when you do not have access to a power outlet."