Gosh I never thought of that, but I think you are right, keep in mind I was quite a distance from the dog, however I did have a black umbrella up, that may have scared him too, geez I was right the first time I was indeed scarey lol. Thanks now i understand what was going on, I was a little confused as to why it seemed scared then got all aggressive, still that doggie should NOT have been roaming the streets, shame on its owners.