You're right, that could cause permanent damage to expensive equipment. What I would not advocate would be using something like this:
Hear, hear.
Not that I would advocate vandalizing the cameras by shooting them with deer slugs or a wrist rocket firing ball bearings or glass marbles or something. That would be a bad thing to do.
You're right, that could cause permanent damage to expensive equipment. What I would not advocate would be using something like this: