charges full speed into sliding door
need some help here, got a 11mo old guy here, very protective. if he sees someone/animal outside our sliding door, he charges full force at the door, jumping, barking, etc.. and no matter what i say or do, his ears are turned off and he doesnt listen lol. usually when he barks at the front door i just say "OUT" and he stops, but for the sliding door, nothing works!
its only a matter of time before he actually crashes thru the glass door and hurts himself, so i need some advice on how to stop him from charging and going crazy! ive tried saying No, Out, Come and even walked over there to try and stop him..but hes quick and just goes around me lol