A bullet in the head is a much more effective warning and a lot harder to ignore...What is your opinion of a warning sticker on your house window, such as: HAVE GUN WILL SHOOT!?
I thought about one of the "we don't call 911" signs with a picture of a gun on it and decided it was a bad idea. Not even sure about an alarm company sign; does it tell them to go away or just that they need to bypass the alarm first?
My son put a "Got Sig" sticker on his truck about a year ago. I told him it was his choice to stick it or not, but it has never sat well with me. As much as I hate to say it, when I use his truck I feel as if I am giving the bad guys a heads up.