This is what I hear: wailing, top of his lungs wailing. I am sure there was gnashing of teeth also. "YOU TOOK MY LEGO PIECE! YOU TOOK IT OFF MY GUY. YOU TOOK IT! YOU ARE A BERY, BERY BAD BOY."
#2 tries to talk to him rationally. It doesn't work. #4 comes downstairs to hide and sulk. I called him over, "Come here little man."
This conversation starts:
#4: Mom, #2 took my lego piece. YOU need to give him a wedgie.
Me: I am not sure a wedgie would be the right answer.
#4: Yes, it would. He took my lego piece. You go upstairs right now and give him a wedgie. Come on mom. Give HIM A WEDGIE.
Don't cross this kid. He goes right for the tender areas.