I have a twin sister...
who is EVIL.
2 days before the school photos she threw a spoon at my head, leaving a huge cut.

Her injury count is higher than mine, however.
In the past few years I have thrown a prawn sandwich at her, smacked her hard round the head with a hockey stick (on our 13th birthday), pushed her over on the sofa (she got her leg stuck down the side and cried), thrown letter openers, punched her in the back, winded her by hitting her in the stomach with the hoover, pulled clumps of her beloved hair out, hid under her bed then smacked her head just as she was nodding off, hit her with my hairbrush (that was yesterday), pulled her hair until her head reached the ground, sat on her (and farted), removed the plank of wood from the top bunk that prevented her from falling out (she fell out), put itching powder in her bed, kicked her in the face, told her to go in the back garden and poke the nest of flying ants with a stick, put twigs in her shoes, bent her arm behind her back, lobbed a tennis racket at her,pushed her over when she was standing up in her sleeping bag, threw a rabbit shaped doorstop at her head (sounds innocent - had a brick in it)...
You get the picture.

My personal favourite is the time I demonstrated putting my head through the arm of our little garden chairs and then pulling it out. She tried it and got her head stuck. I laughed for a good 15 minutes watching my parents trying to pull her while she cried. We would have been about 6 at this point.

Psychologically, I hope to have also done some damage...

When we were 4, I fell out of bed and pretended to be dead. She got a bit worked up.
(PAMPAMPAM, Fri 19 Aug 2005, 1:26, Reply)