You were busy or whatever, when you heard your crackhead "friend" knock on your door quite loudly. After a bit you decided to open the door for him. "Heyyy! I had to get one of your neighbor to buzz us in! I rang, ya never picked up. Was hoping I could crash 'ere." He seemed annoyed with you for about 3 seconds, before going back to his silly chill self. He pet you on the shoulder then headed inside, without really waiting for an answer.