Great stories! .... I am the oldest of 6. 2 brothers and 3 sisters.
We were an "army brat" family ... never staying put too long in one spot. Ottawa, Edmonton, Vancouver (lived at Jerico Beach), Camp Borden (near here, around Barrie, ON), Quebec City, back to Borden, then on my own (finally grew up!).
Took 13 schools till I finally got out of high school. Moving around sure made you able to adapt!
Being the oldest (next was 4 years younger than me), and being independent and an explorer, I never had the brother/sister battles (that I can remember, anyway). I did have a lot of babysitting "situations", and retrieving siblings from personally inflicted distress so our parents wouldn't find out.
Now it is 2 sisters in Ottawa (with familes), 1 brother on Ottawa (with family), 1 sister in Kingston (with family), and a wayward bro in Melbourne, Australia (with wife and her daughter, after they met on the net). I'm in Barrie, away from it all. Maybe I was always in the "avoidance" mode
There are stories about my taking the rubber tip off an arrow from my Cowboy and Indian bow and arrow set, sharpening it and shooting my one sister in the face (just missed her eye) - but I'm sure that is exaggerated