Here are four:
1. My parents' home is at the bottom of a gentle hill on a road which is perfectly straight. My brother and me would hide in the swale until a car would crest the hill at which point we would launch rockets which we would lay flat on the road at the oncoming vehicles. Watching the drivers attempt to dodge the rockets was epic. Sooooo much fun!
2. My parents went out of town for a professional meeting at some university or another and we had the party to end all parties, complete with broken china and damaged furniture. My sister and I went out the next day and purchased replacements for the damaged furniture and china with the money they left for us and money from our bank accounts and never told them.
3. Similar to 1. We purchased about 35-40 small rockets that would normally take an 'A' motor, installed 'C' motors for propulsion with a 3 second delay and above them in the tube, installed another rocket motor that had been cut in half with the propellant side facing the downward so that it could be ignited by the 'chute ejection charge. In the test, they would catch on fire about 100 feet above the ground and continue their fiery descent to terra firma. Testing complete, we set up multiple launch pads and shelled the neighborhood behind my parents property for about 30 minutes until my sister threatened to tell my parents that we declared war on Magnolia Woods development.
4. I was torturing my brother one day (He's 5 years younger, that's what you do as an older brother) and he got really pissed and threw a shoe at me. I ducked and he missed. Unfortunately I was standing in front of my mom's china display case and the shoe took out a whole shelf of custom demitasse placings. My sister dutifully glued each one back together to save her idiot brothers (she's an physician now) and we put them back on the shelves. Our mom didn't discover it for 6 months when we were all out of the house because we were incredibly helpful in cleaning that area so she didn't get near it. The aftermath was horrific.
P.S. I may have been an unapologetic and remorseless street racer when I was younger.