Yah, it's amazing we get along as well as we do...here are a couple of things I did to my sister.
1) We have a cedar chest, and I told her to see if she fit into it, and when she get in and shut the top, I sat on it and wouldn't let her out. I was like 8, she was 5-6
2) Meijers, a grocery store, used to have a playroom in the center of the store, and it had huge animals to climb all over - frogs, turtles, etc. Really, it was a liability waiting to happen. Well, we were on the frog, and I pushed her off, then jumped on top of her, and broke her collar bone. I was about 8 again
3) Every 5th grader got to go to camp but had to sell Christmas ornaments to raise money. I went through the neighborhood one day and there was this particular famly who wasn't too nice, and she didn't know if she wanted to stop by their house. Me, knowing they were Jehovah Witness, told her to go there. I waited on the road. She came out of their house crying. I guess they were pretty nice. I must have been in 7th grade.
But for all those times, I beat up the neighbor kids that picked on her.
She wasn't too mean too me. The most recent thing I could have kicked her butt for was at my wedding. She was the maid of honor and gave a toast. In it she said how it was awesome to be a part of the day, blah blah blah, and how she made sure I put my dress on right, since I was known for coming home from dates with my clothes on backwards. Nice, I sounded like a hooker at my own wedding, and in all honesty, it happened ONCE! It was such a little sister thing to say.