Well, if you give them candy now, they'll be immediately distracted . Distract them as long as you need, unless it results in diabetes.
Instead of a cage or a barrier around, lets try a dog lease always seem to work with my little sister, never once was she in the wrong place or missing . i also agree about kids running into the courts, i really hate that...
Hmm.. ..i thought stomping is part of badminton (you guys probably know/have seen, once in a while, a player will give a soft, medium, loud quick stomp on the floor/court with his/her foot, the same time s/he hits the shuttlecock)..
thats a great idea, but after they're done eating the candy, they will be very hyper because of the sugar rush lol
back when I was a child, my parents would not even allow me to run around. They were really strict. I still remembered when I meddled with the goods on the supermarket shelf or leaned on something, I had a dressing down. well good thing they were strict. although it made me really silent, but I would not want to see what I am now if they had not diciplined me like that.
dressing down means scolding by the way i once bumped a kid onto the groud while i was moving backwards...and after that we all scolded him for running into the court. Don't think anyone pitied him though it prolly hurts for him