Instead of a no guns sign, for our apartments we generally put in cameras.

Try to put camera on a tripod and provide more lighting.

Good idea about inspection with a camera/video.

You may also want to consider security cameras and NRA stickers on your window, haha.

Well, all you need to do is squirt that lemon juice all over your face and cameras won't be able to see you.

I'd also install some security cameras (not in his unit of course) and catch him in the act. 

(Probably what I’d invest in before installing the cameras).

I really don't like pictures so I try to stay away from the camera but I guess I will have to get use to it, if I am going to be standing a stage one day giving motivational talks and speeches. hahaha.

He has installed cameras inside and out, and is temperamental.

You hear about localized flooding and see a reporter standing on a corner surrounded by water...if the camera zoomed out (or you lived in the area and knew), you'd probably see the only spot in town that is like that.