The Mind Molester

Ahh. It is the simple things in life that matter.
Got somebody you don't like? The new mind molester is guaranteed to drive them crazy. It is a simple little device, which you can hide anywhere (suggested places: under heavy furniture) Once it is activated, it will make one loud annoying beep every 3 minutes. In testing over at Real-Tech News, the device drove a room of people half crazy, lifting furniture, roaming through the house, etc. The 3-minute interval is almost perfectly timed: by the time people have given up and went on to something else, there's another beep. Rumors have it that John McCain is already moving to outlaw the use of MindMolesters on US prisoners.
Source: ThinkGeek