The first memory I can be sure of was when I was probably about 2 (my brother was yet to be born) and I was sitting on a window seat in a house in Suffolk we were staying in on holiday. It was quite spooky and old, and I remember sitting there with my hands over my ears and screaming, because the washing machine was really noisy and I didn't like it. Must have been annoying as hell for my poor pregnant mum who was just trying to do the washing! I've never liked loud noises or places, ever. Still don't.
My first coherent long memory was about a year or two later, when my brother was around, I was in the garden, and found a rotten apple that had fallen off the tree on the grass. I showed it to my mum, and she said "Put it on the compost heap". At the time, the compost heap was bricks piled in a square, with a bin bag over the top, held down by half bricks on the corners. I picked up one of the half bricks, and found it surprisingly heavy. So I dropped it. On my bare foot.
So, huge stress, my mum thinks I've broken my toe, blood, etc, etc. She dumps my brother with a neighbour, and we go off to hospital. We wait for ages, then eventually have an X-ray. They say I have to have the X-ray on my own. Bear in mind I'm 2, maybe 3. I go totally mental at this, and in the end they let my mum come in, and I have the X-ray. I remember feeling really bad that I caused my mum hassle, and that she had to put a big lead apron on, and that she must have been annoyed with me. She has recently assured me this isn't the case.

We wait for ages again. By now I'm still sore, and really hungry and grouchy.
Eventually they take me off to a room by myself, and they absolutely point blank won't let my mum come in. I'm, naturally, terrified. I go in, and I have to lie on a trolley thing, and there's a 'nice" nurse (I have never forgiven her

) at my head end saying "Don't worry, it won't hurt, you're ok" then a another nurse at my foot end ripped off my toenail! Obviously, I screamed the place down, because the 'nice' nurse was evidently a lying bitch. It
did hurt, and I was quite obviously
not ok.

I feel sorry for my mum though, because she later said she could just hear me screaming and screaming and couldn't go in to the room. I didn't have a toenail for ages afterwards. And it turned out that she only meant me to put the apple
on top of the compost heap. D'oh!
This set the precedent for the next 10-15 years, of roughly bi-monthly visits to Accident and Emergency for one of us. My mum was of the "It's a nice day, go outside and play" persuasion, which has left us both with an embarrassing lack of knowledge of children's TV programmes, and a fine collection of scars. Wouldn't have it any other way, though.
edit: blimey, sorry it's so long!