Severe head trauma

I have had a traumatic day. It started when I had to witness the death of a wood pigeon on the road while waiting for my bus this morning. I was standing at the stop, staring up the road, as you do, when three young wood pigeons flew across the traffic, two made it, the third was struck a glancing blow by a car as it swooped too low over the tarmac. It fell to the ground in the lane closest to the pavement (the inside lane? I dunno I don't drive). I looked at it, it was only about ten yards away, and it was fluttering pathetically, it's two bird mates landed next to it and started fluttering around it before flying off in fright. It was still alive, not twitching like it had just been killed, but actually fluttering and trying to get up like it had a broken wing. Me being a soft hearted fool, I started walking towards it to see if it could be rescued, muttering to it (like it could hear me, let alone understand) 'you're still alive aren't you, poor thing', when a second car came barrelling down the road. I swear the man driving aimed for it. A second later the bird was a squashed mess of feathers and blood. At this point I was about 5 yards from it, and actually heard it crunch and saw bits of bird squirt out from under the tyre. I was nearly sick. At least it was a quick end, the chances are if I had rescued it, it would have died anyway, and probably suffered.
I got on the bus feeling a little queasy, got to work and was accosted by the boss asking me how I was feeling (I foolishly said I was ok), and then he asked if I would work til 8 instead of 5. Having no excuse handy I (even more foolishly) said yes, so I have been on checkouts for 8 hours. I hate checkouts.
It gave me a chance to think tho, it's been a fairly quiet day, and the long moments of no customers meant I could dwell on the situation between me and pete, and how I have been behaving. Chris commented on sunday that I should maybe see a doctor and tell them how I have been acting. At the time I thought 'yes, that's a good plan, I should get myself sorted out', but thinking about it now, I realise that I have always been like this, I have always been moody and grumpy and a complete pain in the bum, I haven't changed at all, unless the doctor can prescribe a complete personality transplant I don't think they can do much for me.
Ick, I can't get the image of that bird out of my head!