First off, obviously staying away from being over crowds and not interfering with the kites.
Second, knowing that a good kite festival will have some wind.
What would be harmful in flying at a kite festival?
What would be the best angles to...
If you don't know which pine tree, it's tough.
If you do know which pine tree, find some kid who doesn't play video games 24/7 (hard to find) and offer them $50 to climb up and get it. Or find a pole that can reach.
Pine trees are climbable...
As a business model, I think the drone deliveries probably come with a hefty delivery fee.
The time it takes to recharge them makes it unlikely to be a mainstream method of delivery.
There's a market for trafficless delivery, I'm sure.
With...
If there are kids kicking a ball around and it lands in your yard, are you legally obligated to give it back?
If it landed on my property they'd get it back, eventually. I wouldn't make it easy for them, though.
But that's just because I'm "bad".