LOL! I'm still like that, I'm the mean older sister. I got her to do my dirty work for me, and when she didn't co-operate, I'd retaliate. Most of the time it was shoving her beloved Cat in the Hat stuffed animal in the mud.
She was a nasty little bugger too, though! She liked to hide in laundry baskets. We had to DUCT TAPE her diaper to her so she wouldn't rip it off in the middle of the grocery store!
Now she's bigger and taller than me, so I can't take her on anymore.