that is a good idea. Kinda like a "no smoking" sign at every interence for those that use oxygen.
This would work for EMS, and fire and rescue people,,,,, but the police are going to shoot your dog anyway. Some how, police have went from a public servent, to a military mind set.
They are trained to eliminate anything that can present a danger to them (at their own descretion). Not all LEO's are bad, it just seems like the younger generations of police are on a war path. youtube it, google it, do whatever you want. Compair their uniforms from 15 years ago to today. Today they are all in black and resemble a more military look.
sorry for the rant,,,,I still like the Idea of the sign. heres an example WARNING GRAPHIC http://www.youtube.com/watch?v=4kJVnA5KXJw
spooky