We once had a large black dog that wondered in and stayed ...... we promoted him to "Head of security" ..... he met most of our visitors .... attended all important meetings and had his photo mounted in reception after he passed on to higher places (after 10 years of service) .... he had a remarkable calming effect as I remember ..... raise your voice and you would risk being pinned to the wall ....
someone on PPRuNe posted a working military doggie recently .... he certainly seems to have got the hang of things ....
http://media3.guzer.com/pictures/army_dog.jpg
