[Sort of OT] Laser Beam To Discourage Thieves

[Joe Sonne]

Although there will be wireless sensors all over the place in the new  
front office of a building that we are setting up I thought that  
something like a randomly moving laser beam would be a good visual  
discourager for would be thieves. Can anyone point me in the  
direction of something that would do the trick? This can be along the  
lines of the 'Beware of Dog' sign when you don't really have a dog.  
Just something to make amateur thieves think twice before breaking in.