Comment by marssaxman

Some guy I once met in a bar told me that he liked to mix a 1:1 solution of elmer's glue and water, put it into a spray bottle, set the nozzle to "stream", then squirt it all over the lens of a traffic camera near his house which he found offensive. His logic was that this made more sense than destroying the camera, because he could do it over and over and over: the company operating it would have to send someone out to clean the lens off each time, which would probably cost them more money than the camera was worth.