I have/had a neighbor like this. He is around 6' 8", maybe taller, big kid/guy, not fat but no muscle to speak of. He is a gentle giant. He is around 40 now but has the mentality and emotions of a 16 yr old and could easily be pushed over or intimidated by anyone over 5'.
I knew kids in school who where short, skinny scrappy kids and loved to pick on anyone/everyone they could get away with. Funny story once during our spirit week in high school (2 years after I graduated) I was at school visiting a GF. I borrowed another kids costume. Black robe and old mans mask. Everyone knew who it was (him) so I played along and didnt speak. He was about my height but 40 lbs lighter, skinny kid in 9th grade. The school bully liked to pick on him. Not much taller and also skinny but liked to fight and push kids around.
I was walking out of the bathroom and the bully shoulder checked me (thinking I was the other kid). He turned to me, trying to intimidate me saying he was going to kick my a$$ soon so I picked him up, slammed him against the wall and just stared at him. hehehehe He said Mat???? I didnt respond, just kept him off the ground staring at him. He just said. Sorry man, didnt mean it. I let him go and told the kid he probably didnt have to worry about him anymore. I was right. LOL Bully showed him respect after that.