Yesterday we went out for a walk. DS1 started kicking off a bit, so I had both hands on him, he was trying to pull me over/run away. My helper person had ds2 and ds3 who were waiting to start the walk.
A child of about 11 (maybe 10, maybe 12) was running past ds1, he stopped about 1 or 2 feet away and just stared. Like he was watching TV or something. I stared back, but didn't say anything.He stayed there staring until I managed to get ds1 away. Partly I didn't say anything because I was trying to deal with ds1 so was talking to him, but partly because I don't know at what age children should be expected not to stare. I have noticed that early teens are often the worst offenders.
Also thought of that film and the "teach your children some compassion" line or however it goes when the boy is staring at thr flicky flappy boy.