Irritation Lock-In

It would be a small lock (combination or key operated) that is built out of a tough, and waterproof material. It would have a small but very powerfull speaker built into it. it would also come with a small remote with just one button on it. The Panic button. If you want to play a joke on a friend or if you would like to irritate any particular person for any given reason. Or if you simply enjoy chaos all you do is sneak up to the unlucky person and connect the lock to a part of their clothing( belt loops seem ideal). then retreat to a safe distance and press the panic button. Hilarity ensues.

The lock is now letting off a series of high piched squeels ( it could also be programmed to play music) and Squawks.

Now the unlucky person with this attached to them is compelled to either forcibly remove the remote from your clutches or to beg for mercy. If they are unwilling or unable to do one of those things they must face the idea of spending a good deal of time with a squalling monster attached to them. untill the bateries run out or they find a way to remove it. They are at your mercy. Of course this would be extremely cruel to do to someone and leave it going but it would be fun just to see a little panic when they realize what is happening. Before they realize what is happening there is a good chance of all out chaos breaking loose and that sort of thing is considered humorous in some circles. This could possibly be the most idiotic idea ever but I would think it was funny if someone did it to me.