A sense of responsibility

One thing that scares me is then fact that when I sign something, be it an entry in a patients notes or a drug that I have written up, I am taking responsibility - both morally and legally.
This usually is not an issue for me, as I am usually careful when I write in patients notes, and I tend to check drugs that I am not used to prescribing in the BNF, as well as with an SHO. But at night when there are much fewer doctors around, I am more anxious about what I do.
For instance, last night I was responsible for the wards, and one of the things I had to do was prescribe a sedative for an elderly gentleman who was very agitated and so aggressive that the nurses were scared to go near him. Although I checked the dose in the BNF, even though I knew what it was, as I was falling asleep last night I was still thinking about it - cos I had forgotten to check the front of the drug chart to see whether he was allergic to anything. Visions of him going into anaphylactic shock kept me up half the night.
This, to me, is the main difference between being a medical student and a PRHO. Oh, and also you get paid. But this is the less pleasant side of the coin - and the reason why everyone has a subscription with a protection society.
On the brighter side however, being on the lowest rung of the ladder means that my SHO, SpR and consultant are all more culpable than I am. But that does not stop my hyperactive guilty conscience from playing up.
Besides, one day I am going to be a consultant.