My brother did almost all the goofy stuff when we were kids. We moved into a new house in the suburbs when I was 5 and my parents never put anything on credit. You saved, then you bought. They saved up for a year to put two evergreen trees on either side of the drive way. My dad went and picked them up and then planted them himself on the weekend. That monday, my brother who was like 4 at the time found a can of silver spray paint in the garage and painted the trees so they would look like Christmas trees to surprise my dad when he got home. My dad is a yeller so my mom made him calmly explain to my brother why it was wrong to paint them. My brother said he understood but then said "Dad, you have to admit, they do look pretty!" They were dead within weeks. lol
When I was 8 and my brother was 6, my dad went to Sears and bought a huge tent for the family to go camping in. He bought it November and it was in a plain brown box and he put it in the family room not telling us what it was. He was going to wait till December and then wrap it as a gift for the family. One day my brother and his friend found the box, went into the kitchen, got some knives and stabbed the box hundreds of times. LOL When asked why they did it, they said it was fun killing the box. I thought my dad was gonna kill him right then and there.